Lab Practical 3 Flashcards
Muscle of the abdominal wall
External oblique
Action
flexes vertebral column
Muscle of the abdominal wall
Internal oblique
Action
flexes vertebral column
Muscle of the abdominal wall
transverse abdominis
Action
maintaining normal abdominal wall tension
Muscle of the abdominal wall
rectus abdominus
Action/ Origin/ Insertion
flexes the trunk anteriorly
origin: pubic crest
insertion: Xiphoid process
Muscle used in breathing
diaphragm
Action
- respiration
- inhalation
Muscle used in breathing
External intercostalis
Action
- respiration
- inhalation
Muscle used in breathing
Internal intercostalis
Action
- air out
- expiration
Muscle that move the pectoral girdle
Trapezius
Action
stabilizes scapula
Muscle that move the pectoral girdle
pectoralis minor
Action
moves the scapula foward
Muscle that move the pectoral girdle
Levator scapulae
Action/ Origin/ Insertion
Action: elevating scapula
origin: cervical vertebra
insertion: scapula –> medial border
Muscle that move the pectoral girdle
Serratus anterior
Action
rotates scapula
Muscle that move the pectoral girdle
Rhomboid major
Action/ Origin/ Insertion
Action: stabilizes scapula
Origin: throaic vertebra
Insertion: scapula
muscles that move wrist, hand and fingers
flexors group
Action
muscles contracts
muscles that move wrist, hand and fingers
extensors group
Action
extends muscles
Mucles that primarily the arm
Rotator cuff muscles
- supraspinatus
- infraspinatus
- teres minor
- subscapularis
Mucles that primarily the arm
supraspinatus
Action
roating arm medially
Mucles that primarily the arm
infraspinatus
Action
rotating arm lateral
Mucles that primarily the arm
teres minor
Action
rotating arm lateral
Mucles that primarily the arm
subscapularis
Action
roates arm medial
Mucles that primarily the arm
pectoralis major
Action/ Origin/ Insertion
Actions:
- arm adduction
- rotate arm medially
Origin: clavicale and sternum
Insertion: humerus