Anaphymuscular

Question 1

What is the strongest muscle for walking and posture?

Answer 1

Gastrocnemius

Question 2

What is the role of an agonist muscle?

Answer 2

It causes a certain movement

Question 3

What do synergists do in muscle movement?

Answer 3

They function together to produce movement

Question 4

What is the origin of a muscle?

Answer 4

The less movable end of a muscle attachment

Question 5

Can muscles push?

Answer 5

No, they can only contract or relax

Question 6

What happens during triceps contraction?

Answer 6

Biceps relax

Question 7

What are the principles of muscle nomenclature?

Answer 7

Named by location (e.g., Pectoralis)
Named by size (e.g., Maximus, Minimus)
Named by shape (e.g., Deltoid)
Named by orientation (e.g., Rectus)
Named by number of heads (e.g., Biceps)
Named by function (e.g., Abductor)

Question 8

What is the function of the masseter muscle?

Answer 8

It aids in chewing

Question 9

What do the temporalis and masseter muscles do?

Answer 9

They elevate the mandible

Question 10

What is the function of the erector spinae muscles?

Answer 10

They extend, laterally flex, and rotate the vertebral column

Question 11

What is the role of the digastric muscle?

Answer 11

It depresses the mandible

Question 12

What is scoliosis?

Answer 12

A common spinal curvature disorder

Question 13

What movements do neck muscles cause?

Answer 13

Flexion, extension, rotation, lateral flexion

Question 14

What functions do abdominal wall muscles aid in?

Answer 14

Forced expiration, vomiting, defecation, urination, childbirth

Question 15

What muscles compose the abdominal wall?

Answer 15

Internal oblique, external oblique, transversus abdominis, rectus abdominis

Question 16

What is the pelvic diaphragm composed of?

Answer 16

Levator ani and coccygeus muscles

Question 17

What is the function of the external urethral sphincter?

Answer 17

Allows voluntary control of urination

Question 18

What do external intercostals do?

Answer 18

Lift the rib cage for inspiration

Question 19

What is the function of the diaphragm?

Answer 19

It aids in breathing

Question 20

What is the primary role of thoracic muscles?

Answer 20

Involved in the process of breathing

Question 21

What happens to muscle fibers during hypertrophy?

Answer 21

They increase in size

Question 22

What is atrophy in muscle tissue?

Answer 22

A decrease in muscle size

Question 23

What happens to muscle mass with aging?

Answer 23

50% of muscle mass is lost by age 80

Question 24

What is the role of the diaphragm in breathing?

Answer 24

It aids in inhalation by increasing thoracic volume

Question 25

What do pterygoid muscles do?

Answer 25

Move the mandible from side to side

Question 26

What are the characteristics of cardiac muscle cells?

Answer 26

Striated, involuntary, single nucleus

Question 27

What is the significance of intercalated disks in cardiac muscle?

Answer 27

They allow cardiac cells to function as a unit

Question 28

What does the pectoralis major do?

Answer 28

Flexes and extends the shoulder

Question 29

What connects muscle to bone?

Answer 29

Tendon

Question 30

What does elasticity refer to in muscle tissue?

Answer 30

The ability to recoil to original length

Question 31

What do hamstring muscles do?

Answer 31

Flex the knee

Question 32

What is the function of the anterior compartment muscles of the leg?

Answer 32

Cause dorsiflexion, inversion, or eversion

Question 33

How does smooth muscle tone affect organ function?

Answer 33

Maintains steady tension despite volume changes

Question 34

What type of muscle is responsible for most body movements?

Answer 34

Skeletal muscle

Question 35

What do internal intercostals do?

Answer 35

Aid in forced expiration

Question 36

What is the role of the latissimus dorsi?

Answer 36

Adducts and medially rotates the arms

Question 37

How does psychological fatigue affect muscle performance?

Answer 37

It decreases the ability to do work

Question 38

What is contractility in muscle tissue?

Answer 38

The ability to shorten forcibly

Question 39

What is extensibility in muscle tissue?

Answer 39

The ability to be stretched or extended

Question 40

What is the role of ATP in muscle contraction?

Answer 40

It provides energy for contraction and relaxation

Question 41

What connects bone to bone?

Answer 41

Ligament

Question 42

What does excitability refer to in muscle tissue?

Answer 42

The ability to respond to stimuli

Question 43

How can muscle mass loss due to aging be slowed?

Answer 43

By remaining physically active

Question 44

What is the primary characteristic of smooth muscle?

Answer 44

It is involuntary and non-striated

Question 45

What is the structure of skeletal muscle cells?

Answer 45

Elongated and striated fibers

Question 46

What is the primary function of the quadriceps?

Answer 46

Extends the knee

Question 47

What are the functions of the muscular system?

Answer 47

Body movement (skeletal muscle) Maintenance of posture (skeletal muscle) Respiration (diaphragm, intercostal) Production of body heat (skeletal muscle) Communication (skeletal muscle) Constriction of organs and vessels (smooth muscle) Heartbeat (cardiac muscle)

Question 48

What is unique about cardiac muscle cells?

Answer 48

They are striated and involuntary

Question 49

What is the role of the gluteus medius and minimus?

Answer 49

Help hold the hip level while walking

Question 50

What do rotator cuff muscles do?

Answer 50

Act as synergists and fixators

Question 51

What are the differences between the anterior, posterior, and medial compartments of the thigh?

Answer 51

Anteriors flex, posteriors extend, medials adduct