Ca Muscular System Part 2

Front 1

Tendons

Back 1

Attach muscle to bone

Front 2

Ligaments

Back 2

Attaches bone to bone

Front 3

Origin

Back 3

Beginning of a muscle

Front 4

Belly

Back 4

Main portion of a muscle

Front 5

Insertion

Back 5

End of a muscle

Front 6

Sphincter

Back 6

A circular band of muscle around an opening. Some are voluntary some are involuntary.

Front 7

Voluntary Muscles

Back 7

Muscle activity that the body can control.

EX: skeletal muscle

Front 8

Involuntary Muscle

Back 8

Muscle activity that the body can not control

EX: digestive muscles, lungs, heart.

Front 9

Striated Muscle

Back 9

Muscles with striated bands (alternating bands of light and dark muscle)

EX: heart

Front 10

Smooth Muscle

Back 10

Involuntary. Ex: uterus, bladder, stomach, intestine.

Front 11

Biceps Brachii

Back 11

On the cranial, medial surface of the humerus. Has a flexor of the elbow.

Front 12

Origin of the Biceps Brachii

Back 12

Distal scapula.

Front 13

Insertion of the Biceps Brachii

Back 13

Proximal radius

Front 14

Triceps Brachii

Back 14

Caudal, lateral aspect of the humerus. Has 4 heads that joint to from a common tendon that inserts at the olecranon process. Extensor to the elbow and flexor of the shoulder.

Front 15

Origin of the Triceps Brachii

Back 15

Distal scapula and proximal humerus.

Front 16

Insertion of the Triceps Brachii

Back 16

Olecranon process of the ulna.

Front 17

Pelvic Limb Muscles

Back 17

1. Quadriceps

2. Biceps femoris

3. Semitendinosus

4. Semimembranosus

Others:

- gluteal muscle

- gastrocnemius

Front 18

Gluteal Muscle

Back 18

Large muscle of the rump. Often used for injections in large animals and rodents.

Front 19

3 Muscles of the Gluteal Muscle:

Back 19

1. Superficial gluteal muscle

2. Middle gluteal muscle

3. Deep gluteal muscle

Front 20

Gluteal Extensor

Back 20

Hip

Front 21

Skeletal Muscle

Back 21

Voluntary/striated.

Moves bones. Source of "red" meat.

Front 22

Gluteal Muscle Origin

Back 22

Pelvis

Front 23

Gluteal Muscle Insertion

Back 23

Proximal femur.

Front 24

Quadriceps Muscle

Back 24

Large muscle with 4 heads, cranial to femur. Extends to the knee and flexes hip joint.

Front 25

Quadriceps Insertion

Back 25

Patellar tendon

Front 26

Biceps Femoris

Back 26

Wraps around the lateral thigh, long and superficial. Extends 3 joints.

Front 27

Biceps Femoris Origin

Back 27

Ventral ischium.

Front 28

Biceps Femoris Insertion

Back 28

Middle of the tibia.

Front 29

Semitendinosus

Back 29

Caudal aspect of the thigh. When the leg is weight bearing, it is a flexor. Tendon-like, thin.

Front 30

Semitendinosus Origin

Back 30

Ventral ischium.

Front 31

Semitendinosus Insertion

Back 31

Tibial crest, calcaneus.

Front 32

Cardiac Muscle

Back 32

Involuntary. Striated muscle.

Front 33

Semimembranosus

Back 33

Medial to the semitendinosus and deeper. Stifle flexor, hip extensor.

Front 34

Semimembranosus Origin

Back 34

Ventral ischium.

Front 35

Semimembranosus Insertion

Back 35

Medial femur and tibia.

Front 36

Gastrocnemius

Back 36

Calf muscle. Proximal and caudal tibia/fibula.

Front 37

Gastrocnemius Origin

Back 37

Distal end of the femur.

Front 38

Gastrocnemius Insertion

Back 38

Calcaneal process via the gastrocnemius tendon (Achilles tendon).

Front 39

Most common muscles for IM injections (feline and canine):

Back 39

Longissimus lumborum, semitendinosus and semimembranosus.

Front 40

Cutaneous Muscle

Back 40

Located in connective tissue just under the skin. Little to no attachment to bone. Twitches in the skin.

Front 41

Longissimus Lumborum

Back 41

Located in the lumbar area. Useful for IM injections. Muscle of the back.

Front 42

Abdominal Muscles

Back 42

Muscles of the abdominal wall are important because many surgical procedures require abdominal incisions.

Front 43

4 Layers of Abdominal Muscle

Back 43

1. External abdominal oblique

2. Internal abdominal oblique

3. Rectus abdominis

4. Transverse abdominis

Front 44

Linus Alba

Back 44

"White line". Connective tissue that surrounds the muscles. Thick band of connective tissue.

Front 45

Diaphragm

Back 45

Muscle of respiration. Divided the thoracic and abdominal cavities.

Front 46

2 Thoracic Limb Muscles

Back 46

1. Biceps brachii

2. Triceps brachii