-
Elevate ribs for inspiration
intercostal muscles
- exterior--hands in pockets
- interior--hands out of pockets
- innermost--hands out of pockets
-
Depress ribs for force expiration
Transversus thoracis muscles
-
Elevate and depress ribs for inspiration
Serratus posterior superior and inferior muscles
-
Compress and support abdominal viscera
Muscles of anterolateral abdominal wall
External and internal oblique and transversus abdominus
-
Flexes trunk and compresses abdominal viscera
Rectus abdominus
-
Contents of the inguinal canal in males (4)
- Spermatic cord
- ilioinguinal nerve
- genitofemoral nerve
- cremasteric artery
-
Contents of the inguinal canal in females
- Round ligament of uterus
- artery of the round ligament
- genitofemoral nerve
-
Increases intrathoracic space, primary inspiration muscle
Diaphragm
-
3 openings of the diaphragm
- caval hiatus
- esophageal hiatus
- aortic hiatus
-
laterally flex, rotate and/or extend head
splenius muscles
-
laterally flex, rotate, and/or extend vertebral column or head
Erector spinae muscles
-
Rotate vertebral column
Transversospinal muscles
-
laterally flex, rotate and/or flex vertebral column or head
Anterior vertebral muscles
longus colli-->bodies of cervical vertebrae to transverse processes of upper vertebrae
longus capitis-->transverse processes of upper vertebrae to the base of the skull
-
1. bodies of cervical vertebrae to transverse processes of upper vertebrae
2. transverse processes of upper vertebrae to the base of the skull
longus collis
longus capitis
-
laterally flex neck, raise ribs for inspiration
Lateral vertebral muscles (anterior, middle and posterior scalenes)
-
laterally flex, rotate, and/or extend the head and is innervated by the posterior rami of C1 (subocciptal nerve)
Suboccipital muscles
-
Major muscles of respiration (2)
- diaphragm
- intercostal muscles
-
Accessory muscles of respiration (7)
- scalene mm.
- serratus posterior inferior and superior
- abdominal wall mm
- serratus anterior
- pectoralis major and minor
- latisimus dorsi
-
Elevates lateral part of the scapula; retracts scapula, extends
trapezius
-
elevates medial part of the scapula
levator scapulae
-
retracts and elevates scapula
Rhomboid major and minor
-
Protracts and rotates scapula
Serratus anterior muscle
-
Pulls scapula down and forward
Pectoralis minor
-
abducts, rotates, flexes and extends humerus
Deltoid
-
abducts and laterally rotates humerus, and holds the head of the humerus in contact with the glenoid fossa
Posterior rotator cuff muscles (supraspinatus, infraspinatus, teres minor)
-
medially rotates humerus and hold the head of the humerus in contact with the glenoid fossa
Anterior rotator cuff (subscapularis)
-
adducts, medially rotates, and flexes the humerus
Pectoralis major
-
extends, medially rotates and adducts the humerus
latissimus dorsi
-
extends, medially rotates and adducts the humerus
Teres major
-
Flexes and supinates the forearm and hand
Biceps brachii muscles
-
flexes the forearm
brachialis
-
extends the shoulder and forearm
triceps brachii
-
flex the wrist, fingers and thumb and pronates the forearm
long flexor muscles of the forearm
-
flexes the wrist and joints of the hand
flexor digitorium superficialis
-
flexes the wrist and joints of the hand
flexor digitorum profundus
-
flexes the wrist and joints of the thumb
flexor pollicis longus
-
extends the wrist and joints of the hand and supinates the forearm
long extensor muscles of the forearm
-
flexes the elbow joint and supinates the forearm
brachioradialis
-
extends the wrist and joints of the hand
extensor digitorium
-
opposition and flexion of the thumb
thenar muscle
-
flex and abduct the little finger and "cup" the hand
hypothenar muscles
-
flex, extend, abduct and adduct the fingers
interosseous muscles
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