Upper body Muscles and Actions Flashcards Preview

GTA Anatomy & Physiology PT > Upper body Muscles and Actions > Flashcards

Flashcards in Upper body Muscles and Actions Deck (15)
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1
Q

what are the 4 Rotator cuff muscles?

A

Teres minor
subscapularis
Infraspinatus
supraspinatus

2
Q

what are the origins and insertions of rotator cuff muscles?

A

All originate on scapula and insert on humerus

Actions- rotate arm and assist abduction

3
Q

What are the 3 shoulder joint muscles?

A
Pec major (on front/anterior)
Deltoid (wraps shoulder)
Latissimus dorsii (back/posterior)
4
Q

Where are the shoulder joint muscle origins and insertions

A

All insert onto humerus
pecs originate clavicle, sternum, ribs
deltoid originates scapula, clavicle
Lats originate illiac crest, vertebrae, scapula

5
Q

what are the actions of the shoulder joint muscles?

A

all- medial rotation and adduction of the arm

pecs - also horizontal flexion

6
Q

What are the 5 muscles of the shoulder girdle?

A
RLTPS
Rhomboids 
Levator scapulae
Trapezius
Pec minor
Serratus anterior
ALL INSERT ON SCAPULA
7
Q

Where do the rhomboids and levator scapulae originate and insert?

A

origin- vertebrae

insert- scapula

8
Q

Where does the trapezius originate and insert?

A

origin- vertebrae and skull

insertion - scapula and clavicle

9
Q

Where do the serratus anterior and the pectoralis minor originate and insert?

A

origin- ribs

insert- scapula

10
Q

What are the 4 main muscles of the arm?

A

Triceps brachii
Biceps brachii
Brachialis
brachioradialis

11
Q

Where do the biceps originate and insert? Action?

A

originate scapula
insert radius
action flexion, supination

12
Q

Where do the triceps originate and insert? Action?

A

originate scapula and humerus
Insert ulna
action extension elbow/shoulder

13
Q

Where do the brachioradilas and brachialis originate and insert? Actions?

A

Both originate humerus
brachioradilalis inserts on radius
Brachilais on ulna
Action both flex elbow

14
Q

What is the action of the gastrocnemius?

A
Crosses 2 joints
Originated on distal tubercles of femur
Inserts on calcaneus
Action plantar flexion
Knee flexion
15
Q

What is the action of the tibilalis anterior?

A

Originates on tibia
Inserts on medial cuneiform/metatarsals
Action invasion and dorsiflexion