Lab 6 Flashcards
1
Q
Zygomaticus (head)
A
- Origin: zygomatic bone
- Insertion: orbicularis oris
- Action: smiling
2
Q
Masseter (head)
A
- Origin: zygomatic bone
- Insertion: angle of mandible
- Action: chewing
3
Q
Sternocleidomastoid (neck)
A
- Origin: manubrium, clavicle
- Insertion: mastoid process
- Action: neck flexion (head the ball)
4
Q
Pectoralis major
A
- Origin: clavicle, sternum
- Insertion: upper humerus
- Action: flexes and medially rotates arm
5
Q
Deltoid
A
- Origin: clavicle, scapula
- Insertion: deltoid tuberosity of humerus
- Action: abduction of arm
6
Q
Rectus abdominus
A
- Origin: pubic crest
- Insertion: xyphoid process/ costal cartilage
- Action: flexion of spine
7
Q
Trapezius
A
- Origin: spinous process of vertebrae
- Insertion: spine of scapula
- Action: adduct scapula
8
Q
Lattissimus Dorsi
A
- Origin: vertebrae, iliac crest
- Insertion: upper humerus
- Action: adducts arm
9
Q
Triceps brachii
A
- Origin: Glenoid cavity, posterior humerus
- Insertion: olecranon process
- Action: extends forearm/ elbow
10
Q
Biceps brachii
A
- Origin: coracoid process, glenoid cavity
- Insertion: radial tuberosity
- Action: flexes forearm/ elbow
11
Q
Flexor digitorium superferficialis
A
- Origin: medial epicondyle of humerus
- Insertion: phalanges 2-5
- Action: flexes fingers
12
Q
Extensor digitorum
A
- Origin: lateral epicondyle of humerus
- Insertion: phalanges 2-5
- Action: extends fingers
13
Q
Rectus femoris
A
- Origin: acetabulum/ ilium
- Insertion: patella/ tibial tuberosity
- Action: extends lower leg/ knee
14
Q
Biceps femoris
A
- Origin: Ischium and upper femur
- Insertion: head of fibula and condyle of tibia
- Action: flexes lower leg/ knee
15
Q
Gastrocnemius
A
- Origin: medial and lateral condyle of femur
- Insertion: calcaneus
- Action: planter flexion
