Anattomy Lecture 7/8 msucles Flashcards
muscles of the shoudler girle will have insertions and orgins where?
clavicle and scapiula and thoraz
what 2 muscles are considered shoulder and shoulder girldle msucles
pec major and lat dorsi
msucles of the Shoulder have origins and insertions where
between the clavicle, scapula and humerus
what are the 4 msucles of the anterior shoulder girdle
pec major
pec mino
seratus anterior
subclavius
be able to locate pec major, pec minoe, subclavius, serratus anterior
.
what are the 5 muscles of the posterior shoulder girdle
- Rhomboideus Major
- Rhomboideus Minor
- Levator Scapula
- Trapezius
- Latissimus Dorsi *
what are the suprior msucles of the shoulder
supraspinatus and middle delt
what are the inferior muscles of the shoulder
teres major, lat dorsi , long head of triceps brachii
what are the anterior muscles of the shoulder
pec major, coracobrac, subscapularis, anterior deltoid, long head of biceps brachii
what are the posterior muscles of the shoulder
infraspintus, posterior deltoid, teres minor
what are the 4 msucles of the rottator cuff group
infraspintatus
supraspinator
subscapularis
teres minor
is teres major part of the rotator cuff group?
no
what is the main purpose of the rotator cuff group?
to stabilize the shoulder
what are the anterior muscles of the arm
biceps bracii, coraco brac, brachialis
what are the posterior muscles of the arm
trcieps bracii
be able to locate the arm muscles
what can be included in the name of the forearm muscles
origin, insertion, function
where do many of the forearm muscles originate from
distal humerus, radius, ulna and interosseaous membrane
which end of the forearm muscles are bulky and which are thin
proximal end: bulky bellies
distal end: thin (tendons)
Are the flexors and pronators lcoated anteriorally or posteriorly?
anterior
are the extensors and supinators anterior or posterior
posterior
true of false; Flexor Digitorum Superficialis may be classified as a middle layer (on its own)
true (intermediate)
where do most flexors orginate from
form a common tendon
at the medial epicondyle of the humerus
true or false: ALL the flexor
muscles are supplied by the median nerve
false. flexor carpi ulnaris is by the ulnar nerve and flexor digitorem superfiecialis is median and ulnar
how many superficial muscles of the anterior forearm
5
how many deep muscles of the anterior forearm
2 (and flex superficialis)
what are the 5 superficial anterior forearm muscles
pronator teres, flexor carpi radialis, palmaris longus, flexor digitrem superficialis, flexor carpi ulnaris
what are the 2/3 deep muscles od the anterior forearm
flexor digitorem profundus, flexor pollicis longus, pronator quadratus
nbe able to locate the anterior muscles of the forearm
l
where do most of the posterior muscles of the forearm orgingate from
lateral epicondyle
what is the general function of the extensor msucles> and what is the exception
extensors of fringers and wrist
brachioradialis is a flexor of the forearm
what are all the posterior forearms innervated by?
radial
how many superficial muscles are there of the posterior forearm
6
how many deep muscles of the posterior forearm
5
what are the 6 superficial muscles of the posterior forearm
extensor carpi radialis longus extensor carpi radialis brevis extensor digitorem extensor digiti minimi extensor carpi ulnaris anconeus
what are the 5 deep muscles of the posterior froearm
supinator abductor pollicis longus extensor pollicis brevis extensor pollicis longus extensor indisis
be able to label the psoterior muscles of the forearm
/
what are the 3 tendons of the anatomical snuffbox
extensor pollicis longus
extensor pollicis brevis
abductor pollicis longus
what are the contents of the anatomical snuffbox
radial artery, base of the scaphoid, trapezium
muscles that originate outside of hand are called
extrinsc
muscles that originate and insert in the hand are called
intrinsic
what are the 3 groups that intrinsic msucles are organized by?
lateral : thenar eminence
medial: hypothenar eminence
palmar: deep palmar msucles
what are the muscles of the thenar eminance
abductor pollicis brevis
flexor pollicis brevis
opponens pollicis
adductor pollicis (transverse and oblique heads)
what are the muscles of the thenar innervated by?
median (except addcutor pollicic is innervated by ulnar)
be able to label the muscles fot he thenar and hypothenar eminence
w
what are the 3 muscles of the hypothenar emninence
Abductor Digiti Minimi
• Flexor Digiti Minimi
• Opponens Digiti Minimi
what are the muscles of the hypothenar eminence innervated by
• All innervated by Ulnar Nerve
what is the msucels that could also be applied to deep palmar group
adductor pollicis
what are the 3 muscles of the palm
dorsal interossei
palmar interossei
lumbricals
dorsal inte=rossei has how many moneys
4
what are the msucles of dorsal intterossie innervated by
ulnar
where do the dorsal interossei muscels originate from>
both sides of metacarpals
where do the dorsal interossi insert
proximal phalanges 2,3,4
what is the function of the dorsal interossei
abduct fingers
what does the 1st dorsal interossei give you
dorsal webbing
be able to recognize dorsal interossei/
/
how many muscles are there in the palmar interossie
3 (somtimes 4)
what are the muscles of yhr palmar interossei innervated by?
ulnar nerve
where to the palmar interossei originate>
medial side of metacarpales (in relation to middle finger)
where do palmar interossei isert
proximal phalanges of digits 2, 4, 5
what is the fucntion of palmar interossei
ADDUCT fingers
be able to locate palmar interossie
how many lumbrical muscels are there
4
where do the lumbrical muscels originate
tendons of Flexor Digitorum Profundus
where do the lumbricals insert
Insert into extensor expansion 2-5
