Unit 2 Second Order

Function?

• Agoinst of arm flexion

• aDDucts arm

• Medially roates arm

Attachments?

Proximal: Medial clavicle, ribs, body of sternum

Distal: Humerus; lateral part of intertubercular groove of humerus

Innervation?

Lateral pectoral and Medial pectoral nerves

Function?

• ADDucts arm

• Flexes arm

Attachments?

Proximal: Coracoid process of scapula

Distal: Humerus; Middle medial shaft of humerus

Innervation?

Musculocutaneous nerve

Function?

• Flex Forearm

• Supinates forearm when elbow is flexes

• weakly flexes arm (long head only)

Attachments?

Proximal:

• Short head: Coracoid process of Scapula

• Long head: Supraglenoid tubercle of Scapula

Distal:

• Radial tuberosity and bicipital aproneurosis

Innervation?

Musculocutaneous nerve

Function? (Long only)

• Extends forearm

• Extends arm

• aDDucts arm

Attachments? (Long only)

Proximal:

• Scapula; Infraglenoid tubercle of scapula

Distal:

• Olecranon of Ulna

Innervation

Radial nerve

Function?

Flexes forearm

Attachments?

Proximal:

• Humerus; Lateral supracondylar ridge of humerus

Distal:

• Radius; Styloid process of radius

Innervation?

Radial nerve

Function?

• Extends leg

• Flexes thigh

Attachments?

Proximal:

• Anterior inferior illiac spine

Distal:

• Quadriceps tendon to patella and then patellar ligament to tibial tuberosity

Innervation?

Femoral nerve

Function?

• aDDucts thigh

• flexes thigh

Attachments?

Proximal:

• Pubis near pubic sympathysis

Distal:

• Femur; Linea aserpa of femur

Innervation?

Obturator nerve

Function?

• Dorsiflexes foot

• Inverts food

Attachments?

Proximal:

• Tibia; Lateral condyle and proximal shaft of tibia, interosseous membrane

Distal:

• Metatarsal 1 and first (medial) cuneiform

Innervation?

Deep fibular nerve

Function?

• Extends thigh

• Flexes knee

• Medially rotates leg when flexed at the knee

Attachments?

Proximal:

• Ischial tuberosity

Distal:

• Tibia; Proximal medial surface of tibia

Innervation

Sciatic nerve

Function?

• Flexes leg at knee joint

• plantar flexes food

Attachments?

Proximal:

• Head and proximal shaft of fibula; medial border of tibia

Distal:

• Calcaneous, via calcaneal tendon

Innvervation?

Tibial nerve

Function?

• Flexes MP joints

• Extends PIP and DIP joints of toes 2-5

Attachments?

Proximal:

• Tendons of flexor digitorum longus

Distal:

• Tendons of extensor digitorum longus

Innveration?

Medial plantar nerve (1st lumbrical)

Lateral plantar nerve (2-4th lumbricals)

Function?

• Flexes hand at wrist

• Flexes MP joints

• Flexes PIP joints

• Flexes DIP joints of fingers 2-5

Attachments?

Distal:

• Distal phalanges of fingers 2-5

Innervation?

• Lateral one half by media nerve

• Medial one half by ulnar nerve

Function?

• Flexes hand at the wrist

• Flexes MP joints

• Flexes PIP joints of fingers

Attachments

Distal:

• Middle phalanges of fingers 2-5

Innervation:

Median nerve

Function?

• Everts food

• Weak plantar flexor of foot

Attachments?

Distal:

• Base of metatarsal 1

• Medial cuneiform bone

Innervation?

Superficial fibular nerve