Week 3 and 4 - Muscle Identification and Information Flashcards
(34 cards)
1
Q
Pectoantebrachialis
A
- Ventral muscle
- Absent in humans
2
Q
Pectoralis major
A
- Ventral muscle
- Relatively large in humans
- Origin: Clavice, sternum, ribs 1-6
- Insertion: Proximal humerus
- Major action(s): Flexion, adduction and medial rotation of humerus/shoulder/arm
3
Q
Pectoralis minor
A
- Ventral muscle
- Relatively small in humans
- Origin: Ribs 3-5
- Insertion: Coracoid process of scapula
- Major action(s): Elevates ribs; protracts, medially rotates, and depresses scapula
4
Q
Xiphihumeralis
A
- Ventral muscle
- Absent in humans
5
Q
Serratus anterior (humans); Serratus ventralis (cats)
A
- Ventral muscle
- Origin: Ribs 1-9
- Insertion: Vertebral border of scapula
- Major action(s): Elevates ribs; protracts, laterally rotates, and depresses scapula
6
Q
Subscapularis
A
- Ventral muscle
- Origin: Subscapular fossa of scapula
- Insertion: Lesser tubercle of humerus
- Major action(s): Medial rotation of humerus/shoulder/arm; stabilizes shoulder joint anteriorly
7
Q
Triceps brachii (all 3 heads)
A
- Ventral muscle
- Origin: scapula and posterior humerus
- Insertion: olecranon process of ulna
- Major action(s): extends forearm/elbow
8
Q
Biceps brachii (both heads)
A
- Ventral muscle
- Origin: Coracoid process of scapular and lip of glenoid cavity
- Insertion: Radial tuberosity
- Major action(s): Flexes humerus/shoulder/arm; flexes forearm/elbow; supinates forearm
9
Q
External oblique
A
- Ventral muscle
- Origin: Sternum, ribs 5-12
- Insertion: Iliac crest, linea alba via broad aponeurosis, pubis
- Major action(s): Flexes, rotates, and laterally flexes spine
10
Q
Internal oblique
A
- Ventral muscle
- Origin: Iliac crest, inguinal ligament, thoracolumbar fascia
- Insertion: Ribs 9-12, linea alba, pubis
- Major action(s): Flexes, rotates and laterally flexes spine
11
Q
Rectus abdominis
A
- Ventral muscle
- Origin: Pubic crest and symphysis
- Insertion: Ribs 5-7, xiphoid process
- Major action(s): Flexes spine
12
Q
Sartorius
A
- Ventral muscle
- Origin: Iliac crest
- Insertion: Medial tibia
- Major action(s): Flexes, abducts, and laterally rotates of thigh/hip/femur; flexes knee/leg
13
Q
Tensor fascia lata
A
- Ventral muscle
- Origin: Iliac crest
- Insertion: Tibial tuberosity, patella via quadriceps tendon
- Major action(s): Extends knee/leg
14
Q
Rectus femoris
A
- Ventral muscle
- Origin: Ilium, acetabulum
- Insertion: Tibial tuberosity, patella via quadriceps tendon
- Major action(s): Extends knee/leg; flexus thigh/hip/femur
15
Q
Vastus medialis
A
- Ventral muscle
- Origin: Medial femur
- Insertion: Tibial tuberosity, patella via quadriceps tendon
- Major action(s): Extends knee/leg
16
Q
Gracilis
A
- Ventral muscle
- Origin: Pubis
- Insertion: Medial tibia
- Major action(s): Adducts thigh/hip/femur; flexes knee/leg
17
Q
Adductor longus
A
- Ventral muscle
- Origin: Pubis
- Insertion: Posterior femur
- Major action(s): Adducts thigh/hip/femur
18
Q
Adductor magnus (humans); Adductor femoris (cats)
A
- Ventral muscle
- Origin: Pubis, ischium
- Insertion: posterior femur
- Major action(s): adducts and extends thigh/hip/femur
19
Q
Semitendinosus
A
- Ventral muscle
- Origin: Ischial tuberosity
- Insertion: Medial tibia
- Major action(s): Extends thigh/hip/femur; flexus knee/leg
20
Q
Semimembranosus
A
- Ventral muscle
- Origin: Ischial tuberosity
- Insertion: Medial condyle of tibia
- Major action(s): Extends thigh/hip/femur; flexes knee/leg
21
Q
Trapezius (humans - 1 muscle); Cats:
A
- Dorsal muscle
- 3 separate muscles: clavotrapezius, acromiotrapezius, spinotrapezius
22
Q
Deltoid (humans - 1 muscle); Cats:
A
- Dorsal muscle
- 3 separate muscles: clavodeltoid, acromiodeltoid, spinodeltoid
23
Q
Latissimus dorsi
A
- Dorsal muscle
- Origin: Spinous processes of T7-L5, sacrum, ribs 9-12, thoracolumbar, fascia, iliac crest
- Insertion: Humerus
- Major action(s): Adduction, extension, and medial rotation of humerus/shoulder/arm
24
Q
Levator scapulae (humans); Levator scapulae ventralis (cats)
A
- Dorsal muscle
- Origin: Transverse processes of C1-C4
- Insertion: Vertebral border of scapula
- Major action(s): Elevation of scapula
25
Rhomboideus major and minor (humans); Rhomboideus (cats)
- Dorsal muscle
- Origin: Spinous processes of C7-T1, T2-T5
- Insertion: Vertebral border of scapula
- Major action(s): Stabilizes, elevates, retracts, and medially rotates scapula
26
Supraspinatus
- Dorsal muscle
- Origin: Supraspinous fossa of scapula
- Insertion: Greater tubercle of humerus
- Major action(s): Abduction of humerus/shoulder arm; stabilizes shoulder joint superiorly
27
Infraspinatus
- Dorsal muscle
- Origin: Infrasinous fossa of scapula
- Insertion: Greater tubercle of humerus
- Major action(s); lateral rotation of humerus/shoulder/arm; stabilizes shoulder joint posteriorly
28
Gluteus medius
- Dorsal muscle
- Origin: Ilium
- Insertion: Greater trochanter of femur
- Major action(s): Abducts thigh/hip/femur; steadies pelvis
29
Gluteus maximus
- Dorsal muscle
- Origin: Dorsal ilium, sacrum, coccyx
- Insertion: Femur
- Major action(s): Extends, abducts and laterally rotates of thigh/hip/femur
30
Chaudofemoralis
- Dorsal muscle
- Absent in humans
31
Biceps femoris (both heads)
- Dorsal muscle
- Origin: Mid-femur and ischial tuberosity
- Insertion: Head of fibula
- Major action(s): Extends thigh/hip/femur; flexes knee/leg
32
Gastrocnemius
- Dorsal muscle
- Origin: 2 heads - lateral and medial condyles of femur
- Insertion: Calcaneus via achilles/calcaneal/gastrocnemius tendon
- Major action(s): Flexes knee/leg; plantar flexes foot
33
Soleus
- Dorsal muscle
- Origin: Posterior tibia and fibula
- Insertion: Calcaneus via achilles/calcaneal/gastrocnemius tendon
- Major action(s): Plantar flexes foot
34
Achilles/calcaneal/gastrocnemius tendon
- Dorsal muscle
