lab 5 Muscle terminology head neck heart Flashcards
origin
the less movable of the tow points of attachment of a muscle
insertion
the usually distal and more movable attachment of a muscle
tendon
cord of dense regular connective tissue that connects muscle to bone
flexion
decreases the angle of the joint
extension
increases the angle of the joint
elevation
upward (superior) movement of a part of the body
depression
downward(inferior) movement of a part of the body
rotation
the turning movement of a bone around its own long axis
medial rotation
the limbs anterior surface turns towards the medican plane of the body
lateral rotation
the limbs anterior surface turns towards the lateral plane of the body
ispilateral
on the same side
contralateral
relating to the opposite side
synergist
muscle that aids the action of another
antagonist
muscle that opposes the action of another
abduction
movement of a limb away from the midline
adduction
movement of a limb toward the body midline
aponeurosis
fibrous sheet or flat extended tendon
protraction
a nonangular movement in the anterior direction in the transverse plane
pronation
the forearm rotates medially so the palm faces posteriorly
supination
the forearm rotates laterally so the palm faces anteriorly
orbicularis oculi action and innervation
close eye; facial cn VII; label on lab manual
Orbicularis oris action and innervation
purse mouth- kissing; facial cn vii ; label on manual
Frontalis action/innervation
raise eyebrows; facial cn vii; label
zygomaticus major ac/inn
elevate corner of mouth (smile) , facial cn vii, label
Masseter ac/inn
Elevate mandible, mandibular v3 of trigem cn v; label
temporalis ac/inn
elevate mandible; mandibular v3 of trigem cn 5; label
platysma ac/inn
tense neck; facial cn vii; label
sternoclediomastoid (bilateral and unilateral) ac/inn
neck flexion if bilateral ; contralateral neck rotation if unilateral ; accessory cn xi
Anterior and posterior belly of digastric ac/inn
depress mandible; facial cn vii and mandibular v3 of trigem cn v; label
mylohyoid action
elevate hyoid during swallowing
sternohyoid action
depress hyoid during swallowing
superior belly of omohyoid and inferior belly of omohyoid action
depress hyoid during swallowing
sigmoid sinus drains into
internal jugular vein
transverse sinus drains into
sigmoid sinus
inferior sagittal sinus becomes
straight sinus
superior sagittal sinus drains into
right transverse sinus
Brachiocephalic vein drains into
superior vena cava
internal jugular vein merges with what to form what
merges with subclavian veins to form brachiocephalic veins
facial veins drains into
subclavian veins
external jugular vein drains into
superior vena cava
superficial temporal veins drain into
external jugular vveins
which valve of the heart separates the left ventricle from the aorta
the aortic valve
oxygenated blood (picked up in the lungs is found in which chamber(s) of the heart
left atrium and ventricle
what are the first two arteries that branch from the aorta
left and right coronary arteries
the great cardiac vein originates between which two chambers of the heart
right atrium and the ventricle
blood flow pathway
blood returning to heart from -> superior vena cava -> right atrium -> tricuspid valve -> right ventricle -> pulmonary valve -> pulmonary trunk -> pulmonary arteries (L&R) -> capillaries of lungs -> pulmonary veins (L&R) -> left atrium -> mitral valve -> left ventricle -> aortic valve -> ascending aorta -> aortic arch -> myocardium of ventricles
easy way to memorize blood flow pathway
tpma ( TOILET PAPER MY ASS )
antecubital
region anterior to elbow
palma/palmar
palm of hand
axilla/axillary
armpit
carpus/carpi/carpal
wrist
actions of anterior fibers of deltoid
flexion of arm, medial rotation of arm
action of middle (lateral) fibers of deltoid
adduction of arm
action of posterior fibers of deltoid muscle
extension of arm, lateral rotation of arm
motor innervation for deltoid
axillary nerve
coracobrachialis action and innervation
adduction of arm, flexion of arm, mucsulocutaneous nerve
biceps brachii action and innervation (long)
flexion of arm, musculocutaneous nerve
biceps brachii action and innervation (short)
flexion of arm, supination of forearm, musculocutaenous nerve
brachialis action and innervation
flexion of forearm, musculocutaenous nerve
triceps brachii action of lateral head
extension of forearm
triceps brachii action of long head
extension of arm, adduction of arm, extension of forearm
triceps brachii action of medial head
extension of forearm
innervation for triceps brachii
radial nerve
pronator teres action/innervation
pronation of forearm/median nerve
flexor carpi radialis action/innervation
flexion of wrist, abduction of hand / median nerve
palmaris longus action/innervation
flexion of wrist/ median nerve
flexor carpi ulnaris ac/inn
flexion of wrist, adduction of hand/ median nerve
flexor digitorum superficialis ac/inn
flexion of fingers 2-5/median nerve
flexor pollicis longus action/ innervation
flexion of pollex/ median nerve
brachioradialis ac/inn
flexion of forearm/radial nerve
what makes the brachioradialis so special?
its innervated by the radial nerve despite being on the posterior side of the forearm.
what are the different posterior forearm muscles
extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor carpi ulnaris, extensor retinaculum
extensor carpi radialis longus action and innervation
extension of wrist, abduction of hand, radial nerve
extensor carpi radialis brevis action and innervation
extension of wrist, abduction of hand, radial nerve
extensor digitorum aciton and innervation
extension of fingers 2-5 / radial nerve
extensor carpi ulnaris ac/inn
extension of wrist, adduction of hand/ radial nerve
sensory function of musculocutaneous nerve
sensory to lateral forearm
sensory function to median nerve
sensation to anterior skin of lateral 3.5 digits
sensory function to ulnar nerve
sensation to anterior and posterior skin of medial 1.5 digits
sensory function to radial nerve
sensation to posterior skin of arm, forearm and lateral 3.5 digits
sensory function to axillary nerve
sensory to skin over the deltoid
thoracic
relating to thorax = contains pectoral, axillary, and sternal region
pulmonary
relating to lungs
action of anterior scalene
elevate rib 1
action of middle scalene
elevate rib 1
action of posterior scaclene
elevate rib 2
Pectoralis major action
flex arm and adduct arm
pectoralis minor action
elevate ribs 3-5 and protract scapula
serratus anterior action
protract action
the pectoralis minor is attatched to which ribs
3-5
the serratus anterior is attatched to which ribs
1-9
subscpaularis action
medially rotate arm
supraspinatus action
abduct arm
infraspinatus action
adduct arm, laterally rotate arm
teres minor action
laterally rotate arm, adduct arm
external intercostals ac/in
elevate ribs, intercostal nerve
internal intercostal ac/inn
depres ribs, intercostal nerve
diaphragm ac/inn
compress abdominopelvic cavity for inhalation/phrenic nerve
Vagus CN X function/innervation
motor = speaking, parasympathetic motor neurons = heart, gastrointestinal tract
accessory CN XI function
motor to sternocleidomastoid
