Big Picture - Exam 1 Flashcards
What muscles insert into Intertubular groove of humerus
1) lat dorsi
2) pec major / teres major
What muscles insert into greater tubercle of humerus?
(Hint: SITS)
1) Suprspinatus
2) Infraspinatus
3) Teres Minor
What is the only muscle that inserts in the lesser tubercle of the humerus?
Subscapularis
Only muscle to insert into medial humerus?
Coracobrachialis
True or False: Triceps Brachii is a flexor and innervated by musculocutaneous n
False - extends forearm and innervated by radial n
Subclavian becomes ____ and ___ a
Subclavian -> Axillary -> Brachial a
What two muscles insert as medial scapula border?
1) rhomboid major
2) rhomboid minor
What is the only muscle to be inserted into superior scapula?
Levarator scapulae
Which muscles insert on ribs?
- serratous posterior inf (9-12)
- serratous posterior sup (2-5)
- levatores costarum
What muscles ORIGINATE in ribs?
1) pec minor (3-5)
2) serratous anterior
What two muscles are innervated by axillary n?
Deltoid
Teres minor
What two muscles are innervated by subscapular n?
Sub-scapularis
Teres major
What nerve innervates serratous anterior?
Long thoracic
Which muscles laterally rotate arm?
Infraspinous
Teres minor
What muscles allow for medial arm rotation?
1) sub-scapularis
2) teres major
3) pec major
Which two muscles originate in posterior iliac crest and sacrum?
Erector Spine and Transversospinalis (deep back)
What nerve innervated rhomboids and lev scapula?
Dorsal scapular n
Only muscle that inserts into deltoid tuberosity of humerus?
Deltoid
Only muscle that inserts in radial tuberosity? ulnar tuberosity?
Radial Tuberosity: Biceps brachii
Ulnar Tuberosity: Brachialis
What two muscles insert into base of distal phalynx I?
Flexor Policis Longus (deep forearm flexor)
Extensor Policis Longus (deep forearm extensor)
What class of muscles originate into the medial epicondyle?
A. Superficial back muscles
B. Deep back muscles
C. Arm muscles (tricep/biceps)
D. Superficial Forearm Flexors
E. Deep Forearm Extensors
D. Superficial Forearm Flexors
What two muscles insert into base of MC V?
Extensor carpi ulnaris/ flexor carpi ulnaris
What two muscles insert into base of MC II?
Flexor carpi radialis; extensor carpi radialis Longus
What muscles inserts into base of MC I?
Abductor policus longus
Only muscle to insert into base of proximal phalynx?
Extensor policis brevis
What muscles insert at radius?
Brachioradialis
Supinator
Pronator Quadrus
Pronator Teres
What type of joints are united by fibrocartilage or hyaline?
What type of joints are united by fibrous tissue?
Cartilagenous joints (IV discs)
Fibrous joints (Cranial sutures, gomphosis, syndesmosis)
Ball socket, condyloid, hinge, plane, etc. are examples of a ___ joint
synovial
Dens is a feature of __
Mammillary processes are features of ___
Costal facets on body for articulating with ribs is a feature of ___
C2
Lumbar vertebrate
Thoracic verebrate
The Lateral contains sympathetic neuron cell bodies only in ___ and ___ spinal cord
thoracic and upper lumbar
Motor neurons are found in ___ horn while sensory/interneurons are found in the ___
Ventral; dorsal horn
Extension is greatest in what part of the spine? Flexion is greatest in what part of the spine?
Lumbar spine
Cervical spine
T/F: Spinal nerves exit via the IV foramina
True
Femur is an example of a _____ bone while the patella is an example of ____ bone
long; seasmoid
Short bones are ___ while flat bones are ___
carpals; parietal bone of cranium
Limb bones and girdles make up ___ skeleton
Appendicular skeleton
Both the lat dorsi and the lev scapulae inferiorly rotate the scapula. However, which one depresses/rotates pec girdle and which elevates pec girdle?
Lat dorsi - depress/retracts Pgirdle
Lev scapulae - elevates Pgirdle
Which deep muscle allows for unilateral, contralateral rotation of the trunk?
Transversospinalis
Iliocostalis, Spinalis and Longissimus is associated with which deep back muscle?
Semi-spinalis, multifidus, and rotatores is associated with which deep back muscle?
Erector Spinae
Transverso Spinalis
Semi-spinalis is located in ___ region and has ___ vertebrate while multifidus is located in the ____ region and has ____ vertebrates
cervical ; 4-6
lumbar; 2-4
All sub-occipital muscles are innervated by what nerve?
Dorsal ramus of C1
Rectus capitis posterior major and Obliqus capitis inferior are innervated by __
C2
Which muscle group originates from the lateral epicondyle?
A. Deep back muscles
B. Superficial back muscles
C. Superficial extensors of the forearm
D. Deep extensors of the forearm
C. Superficial extensors of the forearm
Origin of almost all deep forearm extensors?
Posterior ulnar/radius/int membrane
Where do both the brachi (tricep/biceps) originate?
Glenoid process of scapular
Tricep = inferior
Biceps = superior
