HUMB1002 Lecture Notes - Lecture 10: Gluteus Maximus Muscle, Sacrum, Spinal Canal
23 Jun 2018
School
Department
Course
Professor
Name
Proximal
Attachment
Point
Distal
Attachment
Point
Action, Function
Nerve Supply
Image
Stern
ocleid
omast
oid
anterior
surface of
manubrium;
superior
surface of
medial
1/3 of clavicle
mastoid process
& lateral ½
nuchal line
Contralateral rotation of neck
•
Extension in upright position
•
Flexion and retraction in supine
•
Bilaterally: Flexion of the head and
neck, extension of the head and neck
Unilaterally: Rotation of head to
opposite side, lateral flexion
Accessory
nerve
Anteri
or
Scalen
e
Superior:
transverse
processes
of C3‐C6
Inferior: 1st rib
Action & Function: flex head;
accessory muscle of
inspiration
Innervation:
cervical spinal
nerves C4‐C6
Middl
e
scalen
e
Superior:
transverse
processes
of C5‐C7
Inferior:
superior surface
of 1st
Rib
Action & Function: flex neck
laterally; accessory muscle of
Inspiration.
Innervation:
anterior rami of
cervical spinal
nerves
Poster
ior
Scalen
e
Superior:
transverse
processes
of C5‐C7
Inferior: external
border of
second rib.
Action & Function: flex neck
laterally; accessory muscle of
Inspiration.
Innervation:
anterior rami of
cervical spinal
nerves
Rectu
s
Capiti
s
Poster
ior
Major
spinous
process of
axis (C2)
Lateral part of
inferior nuchal
Line.
Action: extension of head and
ipsilateral rotation.
Posterior rami
of spinal
nerve C1
Rectu
s
Capiti
s
Poster
ior
tubercle of
posterior
arch of
atlas (C1)
Medial part of
inferior nuchal
line
Action: extension of head on
atlas
Posterior rami
of spinal
nerve C1
Muscles of the Neck
Thursday, 17 May 2018
5:42 PM
E Page 1
ior
Minor
Obliqu
us
capitis
inferio
r
Tubercle of
posterior
arch of
axis (C2)
Transverse
process of atlas
(C1)
Action: “no." Unilateral: turns head
ipsilaterally. Bilateral: extends atlas on
axis
Posterior rami
of spinal nerve
C1
Obliqu
us
Capiti
s
Superi
or
Transverse
process of
atlas (C1)
Between
superior &
inferior
nuchal lines.
Action: Unilateral: skull/C1 rotation.
Bilateral: extends head.
Posterior rami
of spinal nerve
C1
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Vertebral artery
•
Posterior rami of spinal nerve C1
•
Contents:
RCP Major- Rectus Capitis Posterior Major
1.
OCS- Obliquus Capitis Superior
2.
OCI- Obliquus Capitis Inferior
3.
Suboccipital Triangle
Friday, 25 May 2018
1:42 PM
E Page 3
