Practical 1 Flashcards
Temporalis
Prox, Distal & action
Proximal: Temporal fossa & fascia
Distal: coronoid process & rams of mandible
Action: Elevate & retract mandible
Masseter
Prox, distal & action
Proximal: inferior aspect of zygomatic arch
Distal: lateral aspect of rams of mandible
Action: Elevate & protract mandible
Medial Pterygoid
Prox, distal & action
Proximal: lateral pterygoid plate of sphenoid, maxillary tuberosity, pyramidal process palatine
Distal: medial surface of ramus & angle of mandible
Action: laterally move & protract mandible
Lateral Pterygoid
prox, distal, action
Proximal: Superior Head–> infra temporal surface & crest of greater wing of sphenoid
Inferior Head–> lateral surface lateral pterygoid plate of sphenoid
Distal: Neck of mandible
Action: Laterally move & protract mandible
Posterior Digastric
Prox, Distal & action
Proximal: intermediate tendon of digastric muscle
Distal: mastoid notch of temporal bone
Action: Depress mandible, elevate hyoid
Anterior digastric
prox,distal & action
Proximal: digastric fossa of mandible
Distal: intermediate tendon of digastric muscle
Action: depress mandible & elevate hyoid bone
Sternocleidomastoid
Proximal: Sternal Head–> anterior surface of manibrium
Clavicular Head–> medial 1/3 of clavicle
Distal: mastoid process temporal bone, superior nuchal line
Action: Flex, laterally flex & rotate head
Longus colli
Prox, distal & action
Proximal: anterior aspect of C3-T3
Distal: anterior aspect of C1-C5
Action: flex and rotate head ipsilaterally
Longus capitis
Prox, distal & action
Proximal: basilar part occipital bone
Distal: anterior tubercles transverse process C3-C6
Action: flex head
anterior scalene
prox, distal & action
Proximal: anterior tubercle transverse process C3-C6
Distal: scalene tubercle of 1st rib
Action:elevate 1st rib, flex, rotate & laterally flex neck
Middle Scalene
Prox, distal & action
Proximal: transverse process C2-C7
Distal: superior surface 1st rib
Action: laterally flex neck, elevate 1st rib
Posterior Scalene
prox, distal & action
Proximal: posterior tubercles transverse process C4-C6
Distal: External surface 2nd rib
Action: laterally flex neck & elevate 2nd rib
Rectus capitis posterior major
prox, distal & action
Proximal: spinous process C2
Distal: inferior nuchal line
Action: rotate & extend head
Rectus capitis posterior minor
prox, distal & action
Proximal: posterior arch C1
Distal: inferior nuchal line
Action: extend head
Obliquus Capitis superior
prox, distal & action
Proximal: posterior aspect occipital bone
Distal: transverse process C1
Action: laterally flex & extend head
Obliquus Capitis inferior
prox, distal & action
Proximal: spinous process C2
Distal: transverse process C1
Action: rotate head
Splenius capitis
prox, distal & action
Proximal: nuchal ligament, spinous process C7-T1
Distal: mastoid process, lateral 1/3 superior nuchal line
Action: rotate & extend head
Splenius cervicis
prox, distal & action
Proximal: spinous process T3-T6
Distal: transverse process C1-C3
Action: extend, rotate, laterally flex neck
External intercostals
prox, distal & action
Proximal: inferior borders 1st-11th rubs
Distal: superior borders of ribs immediately below
Action: elevate ribs at their costovertebral joints
Internal intercostals
prox, distal & action
Proximal: inferior border 1st-11th ribs & adjacent costal cartilages
Distal: superior border of ribs immediately below
Action: depresses ribs at their costovertebral joints
Upper Trap
Prox, distal & action
Proximal: external occipital protuberance, superior nuchal line, nuchal ligament & spinous process C7
Distal: posterior aspect lateral 1/3 clavicle, acromion of scapula
Action: elevate & downwardly rotate shoulder at AC & sc joints, extend & laterally flex head and neck
levator scapulae
prox, distal & action
Proximal: transverse process C1-C2 (posterior tubercles) and transverse process C3 & C4
Distal: superior angle of scapula and medial border of scapula
Action: elevate, downwardly rotate shoulder at AC & SC joints, extend & laterally flex head/neck
semispinalis capitis
prox, distal & action
Proximal: area between superior & inferior nuchal line
Distal: superior articular process C4-C7 & transverse process T1-T6
Action: extend & contralaterlly rotates head
Longissimus cervicis
prox, distal, & action
Proximal: transverse process T1-T6
Distal: Posterior tubercles transverse process C2-C6
Action: extend & laterally flex neck