Human Body Unit Iii: Intro To Head And Neck

Front 1

parotid gland location/fxn

Back 1

-wraps around mandibular ramus; near ear
-salivation

Front 2

facial n. branches

Back 2

-"two zebras bit my cousin"
-temporal
-zygomatic
-buccle
-marginal mandibular
-cervicle

Front 3

fascial layers of the neck

Back 3

-prevertebral fascia
-pretracheal fascia
-investing fascia
-carotid sheath

Front 4

prevertebral fascia attachment/distal continuation

Back 4

-spinous process of cervical vertebra; wraps around vertebra
-continuous w/axillary sheath

Front 5

pretrachial fascia attachment/distal continuation

Back 5

-wraps around trachea
-continuous w/bucoopharyngeal fascia

Front 6

investing fascia attachment/distal continuation

Back 6

-attaches @ spinous process
-surounds pretrachial & prevertebral fascias
-deep fascia of neck
-splits around trapezius & sternocleidomastoid mm.
-continuous w/parotid fascia

Front 7

carotid sheath composition

Back 7

tube of deep fascia that receives contributions for other fascial layers of neck (prevertebral, pretrachial, investing)

Front 8

carotid sheath contents/organization

Back 8

-carotid a. (deepest)
-internal jugular v. (lateral)
-vagus n. (posterior)
-lymph nodes

Front 9

retropharyngeal space location/fxn

Back 9

-between pretrachial and prevertebral fascia
-loose connective tissue allows layers of fascia to slide against each other/e.g. larynx movement during swallowing
-can allow for spread of infection

Front 10

borders of anterior triangle of neck

Back 10

-mandible (superior)
-midline (anterior)
-sternocleidomastoid m. (posterior-inferior)

Front 11

borders of posterior triangle of neck

Back 11

-sternocleidomastoid m. (anterior-superior)
-trapezius m. (posterior)
-clavicle (inferior)

Front 12

hyoid bone location

Back 12

-anterior region of neck between chin and thyroid cartilage
-level w/base of mandible & C3 vertebra

Front 13

mm. attachments to hyoid bone

Back 13

-digastric (anterior & posterior)
-omohyoid (superior, inferior)

Front 14

borders of occipital triangle

Back 14

-inf. belly of omohyoid m. (inferior)
-trapezius (posterior)
-sternocleidomastoid m. (superior-anterior)

Front 15

contents of occipital triangle

Back 15

-accessory n. (CN XI)
-brachial plexus trunks
-lymph nodes

Front 16

borders of subclavian triangle

Back 16

-inf. belly of omohyoid m. (posterior-superior)
-sternocleidomastoid m (anterior-superior)
-clavicle (inferior)

Front 17

contents of subclavian triangle

Back 17

-subclavian a.
-lymph nodes

Front 18

borders of muscular triangle

Back 18

-superior belly of omohyoid m./hyoid bone (posterior-superior)
-midline (anterior)
-sternocleidomastoid m. (inferior-posterior)

Front 19

contents of muscular triangle

Back 19

-"strap mm."=sternothyroid & sternohyoid
-thyroid gland

Front 20

borders of submental triangle

Back 20

-anterior diagastric m. (posterior-superior)
-midline (anterior)
-hyoid bone (inferior)

Front 21

contents of submental triangle

Back 21

-lymph nodes

Front 22

borders of submandibular triangle

Back 22

-mandible (superior)
-posterior digastric m. (inferior-posterior)
-anterior digastric m. (anterior)

Front 23

contents of submandibular triangle

Back 23

-submandibular gland
-facial a.
-hypoglossal n.
-lymph nodes

Front 24

borders of carotid triangle

Back 24

-superior belly of omohyoid m. (anterior)
-posterior digastric m. (superior)
-sternocleidomastoid m. (posterior-inferior)

Front 25

contents of carotid triangle

Back 25

-carotid sheath (carotid a., internal jugular v., vagus n.)
-hypoglossal n.
-external carotid branches
-lymph nodes

Front 26

major cervical vertebral ligaments (and distal membranes)

Back 26

-anterior longitudinal-->anterior atlanto-occipital membrane
-posterior longitudinal-->tectorial membrane
-ligament flavum-->posterior atlanto-occipital

Front 27

nuccal ligament/fxn

Back 27

-supraspinous ligament of neck
-role in stability of neck while

Front 28

antlantoaxial ligaments

Back 28

-deep to tectorial membrane
-cruciate ligament
-alar (check) ligaments

Front 29

cruciate ligament attachment/fxn

Back 29

-runs btwn lateral masses of atlas
-supports median atlantoaxial joint

Front 30

alar ligaments attachment/fxn

Back 30

-dens to medial aspect of occipital condyles
-limit rotation of head

Front 31

atlanto-occipital joint type/movement

Back 31

-synovial ellipsoidal joint
-flexion/extension of neck
-slight lateral flexion

Front 32

median atlantoaxial joint type/movement

Back 32

-pivot joint
-rotation of neck

Front 33

lateral atlantoaxial joint type/movement

Back 33

-synovial plane (gliding)
-allows gliding during rotation

Front 34

borders of suboccipital triangle

Back 34

-rectus capitis posterior major m.
-obliquus capitis superior m. (superior oblique)
-obliquus capitis inferior m. (inferior oblique)

Front 35

muscles deep to occipital triangle

Back 35

-splenius capitis
-splenius cervicis

Front 36

contents of suboccipital triangle

Back 36

-vertebral a.
-suboccipital n. (dorsal ramus C1)
-suboccipital venous plexus
-Greater occipital n. (dorsal ramus C2) (runs superficial/then inferior)

Front 37

Greater occipital n. course

Back 37

-from occipital bone
-passes superficial to superior portion of suboccipital triangle
-passes inferior to inferior oblique and deep to suboccipital triangle to ganglia