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Topic: Rectus capitis posterior major muscle


  
  Probert Encyclopaedia: Medicine (Re-Rem)   (Site not responding. Last check: 2007-10-10)
The rectus capitis muscles are small triangular muscles that extend from the cervical vertebrae and insert in the occipital bone at the base of the skull.
The rectus capitis posterior minor (rectus capitis posticus minor) originates from the posterior tubercle of the atlas and inserts in the occipital bone.
The quadriceps muscle group consists of four muscles: the rectus femoris, the vastus lateralis, the vastus intermedius, and the vastus medialis.
www.probertencyclopaedia.com /EIB.HTM   (1179 words)

  
 Cremaster muscle - Wikipedia, the free encyclopedia
The cremaster muscle is a muscle which covers the testis.
In human males, the cremaster muscle is a thin layer of skeletal muscle found in the inguinal canal and scrotum between the external and internal layers of spermatic fascia, surrounding the testis and spermatic cord.
This doesn't happen in all males, however, the stronger the pelvic muscles the easier it is to cause the cremaster to contract.
en.wikipedia.org /wiki/Cremaster_muscle   (330 words)

  
 [No title]
Identify the four pairs of deep muscles of the supoccipital region: rectus capitis (posterior) minor muscle, rectus capitis (posterior) major muscle, superior oblique muscle, and inferior oblique muscle (Figure 1.7).
The rectus capitis posterior minor muscle attaches to the inferior nuchal line of the occipital bone and the posterior tubercle of the atlas (C1) vertebra.
The rectus capitis (posterior) major and inferior oblique muscles attach to the spinous process of the axis (C2) vertebra.
www.med.uc.edu /haonline/back/labs/lab1/lab1_10.html   (116 words)

  
 IX. Neurology. 6a. The Posterior Divisions. Gray, Henry. 1918. Anatomy of the Human Body.
Diagram of the distribution of the cutaneous branches of the posterior divisions of the spinal nerves.
The posterior division of the suboccipital, and the medial branches of the posterior division of the second and third cervical nerves are sometimes joined by communicating loops to form the posterior cervical plexus (Cruveilhier).
Sacrales)—The posterior divisions of the sacral nerves (rami posteriores)(Fig.
www.bartleby.com /107/209.html   (1206 words)

  
 IV. Myology. 6b. The Suboccipital Muscles. Gray, Henry. 1918. Anatomy of the Human Body.
The Rectus capitis posterior major (Rectus capitis posticus major) arises by a pointed tendon from the spinous process of the axis, and, becoming broader as it ascends, is inserted into the lateral part of the inferior nuchal line of the occipital bone and the surface of the bone immediately below the line.
The Rectus capitis posterior minor (Rectus capitis posticus minor) arises by a narrow pointed tendon from the tubercle on the posterior arch of the atlas, and, widening as it ascends, is inserted into the medial part of the inferior nuchal line of the occipital bone and the surface between it and the foramen magnum.
The Obliquus capitis inferior (Obliquus inferior), the larger of the two Oblique muscles, arises from the apex of the spinous process of the axis, and passes lateralward and slightly upward, to be inserted into the lower and back part of the transverse process of the atlas.
www.bartleby.com /107/116.html   (847 words)

  
 Mechanism
Rectus capitis lateralis Arising from the upper surface of the transverse process of the atlas and inserts in to the inferior surface of the jugular process of the occipital bone.
Rectus capitis anterior Arises from the anterior surface of the lateral mass of the atlas and the root of the transverse process, ascends to the inferior surface of the occipital bone anterior to the occipital condyle.
Contraction of the suboccipital muscles activates the tonic neck reflexes causing chronic tension in the extensor muscles and a pathologic asymmetric tonic neck reflex, or functional short leg The hypothesis is shown as a schematic algorithm in figure 3.
members.aol.com /gaknutson/Mechanism.html   (7064 words)

  
 Glossary.22.- torticollis, tremor, tumor & tympanum
The space bounded by the anterior belly of the omohyoid muscle, the posterior belly of the digastricus muscle, and the sternomastoid muscle.
Triangle bounded by the upper border of the clavicle, the posterior border of the sternocleidomastoid muscle, and the anterior border of the trapezius muscle.
The triangular region of the neck, bounded by the inferior border of the mandible, the stylohyoid muscle and the posterior belly of the digastric muscle, and the anterior belly of the digastric muscle; it is one of three triangles included in the anterior triangle of the neck.
www.kneelsit.com /glossary/glossary22.html   (1414 words)

  
 Untitled
The RCPMI muscle was immediately visible arising from the posterior arch of the atlas and ascending to be inserted into the surface of the occipital bone from the inferior nuchal line to the foramen magnum (See Figure 14).
The influence of the RCPMI muscle on the dura mater was artificially produced in the hemisected specimen.
Artificially functioning the muscle produced obvious movement of the spinal dura between the occiput and the atlas, and resultant fluid movement was observed to the level of the pons and cerebellum (See Figures 15 and 16).
hal.bim.msu.edu /Research/AOA/intro.html   (3232 words)

  
 The suboccipital cavernous sinus
In the atlantoaxial region, the obliquus capitis inferior and the semispinalis and splenius cervicis muscles delineate the inferior suboccipital triangle.
h (at the superior medial loop) and vascularizes the neighboring portion of the posterior fossa dura, the falx cerebelli, the posterior portion of the tentorium, and the adjacent squama of the temporal bone (Fig.
Kimmel DL: Innervation of spinal dura mater and dura mater of the posterior cranial fossa.
www.c3.hu /~mavideg/jns/1-6-p2.html   (6189 words)

  
 RECTUS CAPITIS POSTERIOR MAJOR   (Site not responding. Last check: 2007-10-10)
Location: The rectus capitis posterior majors are readily accessible for palpation because of their broadening insertion.
The muscle may be well defined or seem only to blend with overlying muscle that runs relatively in the same direction to its fibers.
In either situation the rectus capitis posterior major gives a "raised effect" as its fibers are traced over the atlas posterior arch.
home.epix.net /~ampspine/rcpmaj.htm   (188 words)

  
 RECTUS CAPITIS POSTERIOR MINOR   (Site not responding. Last check: 2007-10-10)
Listing Involvement: Rectus capitis posterior minor corrects the superiority of the anterior atlas subluxation and is involved in correcting atlas laterality (on the side opposite of laterality).
Working Sensation: Upon palpation of the rectus capitis posterior minor, tension can be interpreted to any of the three degrees but must first be distinguished from the sensation inherent to the normal muscle tone relative to the surrounding muscle tissues.
The rectus capitis posterior minor may at first touch suggest a working tension but upon further comparison to the surrounding muscle tissues, found to be only the characteristic tone of the individual's muscle.
home.epix.net /~ampspine/rcpmin.htm   (228 words)

  
 [No title]   (Site not responding. Last check: 2007-10-10)
The external muscles of the eye are important, in part, because of their dependence on the intergrity of certain cranial nerves.
The temporalis is the longer and deeper muscle stretching from the frontal, parietal and temporal bones to the anterior ramus of the mandible.
The actions of these muscles are balanced by the external intercostal and internal intercostal muscles, and by three sheets of muscle which reinforce the abdominal wall: rectus abdominis, external oblique and internal oblique.
www.nuancekk.com /Virtual_U/Webpages_biomed/Axial_Muscles.html   (406 words)

  
 Virtual Hospital: Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing ...   (Site not responding. Last check: 2007-10-10)
The textbook description of this muscle is that it arises from the spine of the axis, and its fibers pass upward and laterally, to insert onto the lateral half of the inferior nuchal line.
In rectus capitis posterior minor, which arises from the posterior tubercle of the atlas, and its diverging fibers pass upward and laterally, to insert below the medial third of the inferior nuchal line, several variations occur.
Atlantomastoid is a small muscle, often present, arising from the transverse process of the atlas, between the superior oblique and lateral rectus, and inserting into the posterior part of the mastoid process.
www.vh.org /adult/provider/anatomy/AnatomicVariants/MuscularSystem/Text/S/44ASuboccipitales.html   (672 words)

  
 ASB: VARIATIONS IN NECK MUSCLE FASCICLE LENGTHS   (Site not responding. Last check: 2007-10-10)
The muscles of the neck generate head movements and maintain the stability of the cervical spine.
The muscles included in this analysis were sternocleidomastoid, longus capitis, scalenus (anterior, medius, and posterior), trapezius, splenius (capitis/cervicis), semispinalis (capitis/cervicis), rectus capitis posterior major, rectus capitis posterior minor, obliquus capitis superior and obliquus capitis inferior.
However, splenius capitis fascicles act on the descending limb and plateau region during pitch, while semispinalis capitis fascicle lengths operate on the ascending limb and the plateau region (Figure 2).
asb-biomech.org /onlineabs/abstracts96/vasavada.html   (1039 words)

  
 [No title]
The stylopharyngeus muscle and glossopharyngeal nerve pass between the superior constrictor muscle and the middle constrictor muscle.
The ansa cervicalis innervates all of the infrahyoid strap muscles except the sternohyoid muscle.
The vagus nerve lies in the posterior aspect of the carotid sheath.
www.uhmc.sunysb.edu /anatomy/HBA521oldexams/dexam400.doc   (1453 words)

  
 AARF   (Site not responding. Last check: 2007-10-10)
In the second phase, the asymmetrical or muscular phase, the axis of rotation are the C1/C2 articular facets opposite the side of lateral flexion, caused by tractioning the C2 spinous process by the craniocervical muscles, especially the rectus capitis posterior major muscle (10).
Finally, the weight of the skull on the anteriorly subluxated C1 provides additional resistance to the interlocked joint that would have to be overcome by the tractioning effect of the rectus capitis posterior major muscle in the asymmetric phase of lateral flexion.
The inability of the tractioning effect of the craniocervical muscles to overcome the resistance of the unilateral subluxation of the atlas may be the mechanism causing the fixation.
members.aol.com /gaknutson/aarf.html   (2730 words)

  
 [No title]   (Site not responding. Last check: 2007-10-10)
Muscles of the suboccipital area: All are innervated by the suboccipital Nerve, which is the dorsal ramus of C1 nerve!
Rectus capitis posterior major — arise from spinous of C2 and inserts in to lateral part of the inferior nuchal line Obliquus capitis inferior — arises from spinous process of C2 and inserts into the transverse process of C1.
Rectus capitis posterior minor — arise from the posterior tubercle of the posterior arch of C1 and inserts into the medial part of the inferior nuchal line.
www.med.unc.edu /wms/firstaid/ga4-hn3.doc   (1585 words)

  
 Ischiocavernosus muscle - Wikipedia, the free encyclopedia
The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women.
It helps flex the anus, and (in males) stablize the erect penis or (in females) tense the vagina.
Kegel exercises (also known as pelvic floor exercises) can help tone the ischiocavernosus muscle.
en.wikipedia.org /wiki/Ischiocavernosus_muscle   (105 words)

  
 Healing People Network L.P.   (Site not responding. Last check: 2007-10-10)
The superior insertion of the muscle is into the medial part of the inferior nuchal line on the occipital bone, between the nuchal line and the foramen magnum.
The observed transmission of tension created in the spinal dura to the cranial dura of the posterior cranial fossa is consistent with the described discontinuity between the spinal and intracranial parts of the dura mater.
Greenman, a major researcher in both the studies reported above, has found, utilising EMG testing, that rectus capitis posterior minor is not an extensor of the head, as is suggested by most physiology texts.
www.healingpeople.com /ht/index.php?option=content&task=view&id=362&Itemid=136   (3108 words)

  
 Soft Tissue | Warren Hammer, MS, DC, DABCO
The dura mater connects the occiput with the sacrococcygeal complex and has firm osseous attachments at the entire circumference of the foramen magnum, to the posterior bodies of the second and third cervical vertebrae and within the sacral canal at the level of second sacral segment at its anterior portion where the subdural space ends.
Both the rectus capitis posterior minor (RCPM) muscle and the posterior atlanto-occipital membrane attach from the posterior arch of the atlas to the occipital bone.
In all 11 cadavers examined dense connective tissue (fascia) connected the RCPM muscle to the posterior atlanto-occipital (PAO) membrane and the PAO membrane was "fused to the spinal dura by numerous fine connective tissue elements."1 Tension of the RCPM could explain dual drag or restriction of the pain sensitive dura.
www.chiroweb.com /archives/14/04/24.html   (462 words)

  
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Generally, the muscles that span the spine can be divided into the erector spinae, which are more superficial and cover many segments of spinal movement, and the transversospinalis muscles, which are shorter and deeper and are generally used more for orientation and stability rather than brute strength.
The erector spinae are three sets of muscles which together span the entire spine from the sacrum to the occiput, designed to resist the body's tendency to trunk flexion.The spinalis is the most medial, a thin little series running from spinous process to spinous process.
The four suboccipital muscles which are a part of the SBL are the rectus capitis posterior minor (RCPM), the rectus capitis posterior major (RCPMaj), the obliquus capitis superior (OCS) and obliquus capitis inferior (OCI) (See Figs 5-8.
www.massagetherapy.com /articles/index.php/article_id/419   (2632 words)

  
 Terminology R   (Site not responding. Last check: 2007-10-10)
medial rectus = the largest of the extraocular muscles, arising from the common tendinous ring and passing forwards to insert on the a
The lateral margin of the muscle forms the linea semilunaris.
risorius: Latin risor = scoffer; hence, muscle risorius is the facial muscle which expresses laughter by drawing the corner of the mouth laterally.
www.anatomist.co.uk /Terminology/Terminology2r.htm   (775 words)

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