Muscular system

Question 1

Skeletal Muscle (voluntary)

Answer 1

fibers are multinucleated structures that compose the skeletal muscle.

Question 2

Cardiac Muscle (involuntary)

Answer 2

are only found in the heart

Question 3

Smooth Muscle (involuntary)

Answer 3

are called so because they do not have striations. These can be found in hollow organs such as bladder, stomach, uterus, intestines, and passageways of circulatory system

Question 4

Exicability

Answer 4

Able to send electrical waves (action potential) along the entire length

Question 5

Elasticity

Answer 5

Having the ability to recoil back to its original length

Question 6

Extensibility

Answer 6

Allows muscles to stretch or extend

Question 7

Contractility

Answer 7

Allows muscles to pull on its attachment and shorten

Question 8

Fascicle

Answer 8

The muscle fibers that are arranged in bundles

Question 9

Epimysium

Answer 9

Outermost layer, surrounds entire muscle

Question 10

Perimysium

Answer 10

Separates and surrounds fascicles

Question 11

Endomysium

Answer 11

Surrounds each individual muscle fiber

Question 12

Sarcolemma

Answer 12

Muscle fiber membrane

Question 13

Myofibril

Answer 13

Individual parallel muscle fibers (made up of actin and myosin)

Question 14

Sarcoplasm

Answer 14

Inner material surrounding the myofibril (equivalent to the cell’s cytoplasm)

Question 15

Actin

Answer 15

Thin filaments

Question 16

Myosin

Answer 16

Thick filaments

Question 17

subclavius

Answer 17

small triangular muscle, placed between the clavicle and the first rib.

Question 18

subclavius

Answer 18

small triangular muscle, placed between the clavicle and the first rib.

Question 19

serratus anterior

Answer 19

muscle that originates on the surface of the 1st to 8th ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula.

Question 20

trapezius

Answer 20

a large superficial back muscle that resembles a trapezoid

Question 21

rhomoid major

Answer 21

a muscle arising from the spinous processes of the second through fifth thoracic vertebrae, inserted into the vertebral border of the scapula, and acting to adduct and laterally rotate the scapula.

Question 22

pectorails major

Answer 22

any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder

Question 23

latissimus dorsi

Answer 23

large, roughly triangular muscles covering the lower part of the back, extending from the sacral, lumbar, and lower thoracic vertebrae to the armpits.

Question 24

deltoid

Answer 24

attaches to the spine of the scapula and lateral third of the clavicle.

Question 25

supraspinatus

Answer 25

he smallest of the 4 muscles which comprise the Rotator Cuff of the shoulder joint specifically in the supraspinatus fossa. It travels underneath the acromion.

Question 26

teres major

Answer 26

two muscles passing below the shoulder joint from the scapula to the upper part of the humerus, one ( teres major ) drawing the arm toward the body and rotating it inward, the other ( teres minor ) rotating it outward.

Question 27

biceps brachii

Answer 27

several muscles having two points of attachment at one end.

Question 28

triceps brachii

Answer 28

several muscles having three points of attachment at one end.

Question 29

pronator teres

Answer 29

he humerus and the coronoid process of the ulna, inserting into the lateral surface of the middle third of the radius, and serving to pronate and flex the forearm.

Question 30

supinator

Answer 30

muscle whose contraction produces or assists in the supination of a limb or part of a limb.

Question 31

iliacus

Answer 31

triangular muscle which passes from the pelvis through the groin on either side and, together with the psoas, flexes the hip.

Question 32

gluteous maximus

Answer 32

the outermost muscle of the three glutei found in each of the human buttocks.

Question 33

gluteus medius

Answer 33

large fan-shaped muscle located in the posterior hip, extending from the ilium to the proximal femur

Question 34

gluteus minimus

Answer 34

small triangular muscle located deep in the posterior region of the hip, spanning from the gluteal surface of the ilium to the proximal end of the femur

Question 35

adductor longs

Answer 35

a skeletal muscle located in the thigh.

Question 36

rectus femoris

Answer 36

part of the quadriceps group. It is a bulk of muscle located in the superior, anterior middle compartment of the thigh and is the only muscle in the quadriceps group that crosses the hip

Question 37

biceps femoris

Answer 37

muscle of the posterior compartment of the thigh, and lies in the posterolateral aspect

Question 38

tibialis anterior

Answer 38

along the upper two-thirds of the lateral (outside) surface of the tibia and inserts into the medial cuneiform and first metatarsal bones of the foot.

Question 39

extensor hallucis longus

Answer 39

thin muscle, situated between the Tibialis anterior and the Extensor digitorum longus.It is located on the lateral side of the leg

Question 40

extensor digitorum

Answer 40

muscle on the back of the forearm that extends the fingers and wrist.

Question 41

gastrocnemius

Answer 41

the chief muscle of the calf of the leg, which flexes the knee and foot. It runs to the Achilles tendon from two heads attached to the femur.

Question 42

soleus

Answer 42

broad muscle in the lower calf, below the gastrocnemius, that flexes the foot to point the toes downward.

Question 43

tibialis posterior

Answer 43

the most central of all the leg muscles, and is located in the deep posterior compartment of the leg.

Question 44

flexor digitorum longus

Answer 44

muscle of the tibial side of the leg that flexes the terminal phalanx of each of the four small toes.

Question 45

flexor hallicis longus

Answer 45

powerful muscle located on the posterior aspect of the fibular below the deep fascia of the calf.