Anatonmy 7 muscular system

Question 1

Fascicles

Answer 1

Small bundles of muscle fibers

Question 2

Sarcomere

Answer 2

Arranged in series within the myofibril, extends from Z line to Z line.

Question 3

Tendon

Answer 3

Cordlike structure that attaches muscle to bone.

Question 4

T-Tubules

Answer 4

An extension of the sacrolemma that penetrates into the interior of the muscle

Question 5

Sarcoplasmic Reticulum

Answer 5

Structure within the sarcomere that stores calcium

Question 6

Aponeurosis

Answer 6

Flat, sheet like fascia that attaches muscle to muscle or muscle to bone

Question 7

Actin

Answer 7

Thin filament that extends from Z lines toward the center of the sarcomere

Question 8

Myosin

Answer 8

Thick Filament that forms crossbridges with the thin filaments

Question 9

Muscle fiber

Answer 9

Another name for muscle cell

Question 10

Sarcolemma

Answer 10

Another name for the cell membrane

Question 11

Frontalis

Answer 11

Flat muscle that raises the eyebrows and wrinkles the forehead

Question 12

Masseter

Answer 12

A chewing muscle that works synergistically with the temporalis muscle to close the jaw

Question 13

Zygomaticus

Answer 13

The smiling muscle

Question 14

Deltoid

Answer 14

Abducts the arm into the “scarecrow” position. Also known as the shoulder pads

Question 15

Triceps Brachii

Answer 15

Antagonist to the biceps brachii. Located on the posterior side of the humerus

Question 16

Buccinator

Answer 16

Flattens the cheeks as in blowing into a trumpet.

Question 17

Trapezius

Answer 17

Moves the head back as in looking at the sky. Also shrugs the shoulders

Question 18

Temporalis

Answer 18

Flat, Fan shaped muscle that extends from the temporal bone to the mandible

Question 19

Brachialis

Answer 19

Synergetic to the biceps brachii

Question 20

Latissimus Dorsi

Answer 20

Large, flat muscle of the mid- to lower back, allows you to point behind you.

Question 21

Sternocleidomastoid

Answer 21

Attaches to the breastbone,collarbone, and temporal bone. Also the muscle colprit in torticollis

Question 22

Pectiralis Major

Answer 22

Large muscle on the anterior chest

Question 23

Diaphragm

Answer 23

Dome-shaped muscle that seperates the thoracic cavity from the abdominal cavity

Question 24

Adductors

Answer 24

Large muscles located along the medial part of the thigh; horse back riders use these muscles to grip the horse with their thighs

Question 25

Abdominal

Answer 25

Includes the internal obliques, external obliques, transversus, and the rectus

Question 26

Gluteus Maximus

Answer 26

Largest muscle in the body that forms most of the buttocks

Question 27

Quadriceps Femoris

Answer 27

A group of muscles located on the anterior thigh; extends the leg. Includes the rectus femoris, vastus lateralis and vastus medialis

Question 28

Gastrocnemius

Answer 28

With the help of the achilles tendon this muscle attaches to the heel. The large calf muscle that is used in plantar flexion

Question 29

Hamstrings

Answer 29

The muscle group on the posterior thigh; it acts antagonistically to the quadriceps femoris muscle group

Question 30

Tibialis Anterior

Answer 30

Muscle that dorsflexes the foot,