Question 1

Which of the following is a correct association of bone structure and function?

Accepted Answer

A)  osteoblasts-cells that break down bone tissue 
B)  osteoclasts-cells that build bone tissue 
C)  osteons-units of spongy bone 
D)  canaliculi-the central canal in a long bone 
E)  lacunae-tiny chambers that house osteocytes 
A)  osteoblasts-cells that break down bone tissue 
B)  osteoclasts-cells that build bone tissue 
C)  osteons-units of spongy bone 
D)  canaliculi-the central canal in a long bone 
E)  lacunae-tiny chambers that house osteocytes

Question 2

What is the condition in many older women in which the bones become weak and thin?

Accepted Answer

A)  rheumatoid arthritis 
B)  bursitis 
C)  osteoarthritis 
D)  osteoporosis 
E)  meningitis 
A)  rheumatoid arthritis 
B)  bursitis 
C)  osteoarthritis 
D)  osteoporosis 
E)  meningitis

Question 3

Which of the following criteria is used in the naming of muscles?

Accepted Answer

A)  size 
B)  shape 
C)  location 
D)  name(s) of the bone(s) it attaches to 
E)  All of the answer choices describe criteria used in the naming of muscles. 
A)  size 
B)  shape 
C)  location 
D)  name(s) of the bone(s) it attaches to 
E)  All of the answer choices describe criteria used in the naming of muscles.

Question 4

If all of the muscle fibers in the neck, trunk, and legs were to totally relax, the body would collapse. What is the state called where some of the fibers in a particular muscle are always contracted?

Accepted Answer

A)  twitch 
B)  threshold 
C)  tetanus 
D)  tone 
E)  summation 
A)  twitch 
B)  threshold 
C)  tetanus 
D)  tone 
E)  summation

Question 5

The deltoid muscle is shaped like a triangle.

Accepted Answer

A) True 
 B)False

Question 6

A maximal sustained muscle contraction is called

Accepted Answer

A)  a twitch. 
B)  a threshold. 
C)  tetanus. 
D)  tone. 
E)  summation. 
A)  a twitch. 
B)  a threshold. 
C)  tetanus. 
D)  tone. 
E)  summation.

Question 7

The vertebrae are part of the appendicular skeleton.

Accepted Answer

A) True 
 B)False

Question 8

The sarcoplasmic reticulum will release calcium ions after the muscle impulses travel through the

Accepted Answer

A)  sarcolemma. 
B)  neuromuscular junction. 
C)  tropomyosin. 
D)  axon terminal. 
E)  T tubule. 
A)  sarcolemma. 
B)  neuromuscular junction. 
C)  tropomyosin. 
D)  axon terminal. 
E)  T tubule.

Question 9

The joints found between the vertebrae are classified as being

Accepted Answer

A)  immovable. 
B)  slightly movable. 
C)  freely movable. 
D)  synovial joints. 
E)  discoidal. 
A)  immovable. 
B)  slightly movable. 
C)  freely movable. 
D)  synovial joints. 
E)  discoidal.

Question 10

Which of the following bones is part of the appendicular skeleton?

Accepted Answer

A)  ribs 
B)  sternum 
C)  scapula 
D)  vertebrae 
E)  skull 
A)  ribs 
B)  sternum 
C)  scapula 
D)  vertebrae 
E)  skull

Question 11

Which of the following is a function that is independent of the skeletal system?

Accepted Answer

A)  substantial body movement (walking, etc.) 
B)  storage of calcium, phosphorus, and fat 
C)  blood cell production 
D)  protection of brain and other soft organs 
E)  detection of stimuli 
A)  substantial body movement (walking, etc.) 
B)  storage of calcium, phosphorus, and fat 
C)  blood cell production 
D)  protection of brain and other soft organs 
E)  detection of stimuli

Question 12

The antagonistic muscle to the quadriceps femoris group is the gastrocnemius.

Accepted Answer

A) True 
 B)False

Question 13

What structure allows the distribution of nutrients to osteocytes?

Accepted Answer

A)  canaliculi 
B)  spongy bone 
C)  osteoblasts 
D)  growth plates 
E)  diaphysis 
A)  canaliculi 
B)  spongy bone 
C)  osteoblasts 
D)  growth plates 
E)  diaphysis

Question 14

The plasma membrane of a muscle fiber is called the sarcolemma.

Accepted Answer

A) True 
 B)False

Question 15

Cross-bridges connect

Accepted Answer

A)  tropomyosin to troponin. 
B)  troponin to myosin. 
C)  tropomyosin with actin. 
D)  troponin to actin. 
E)  myosin to actin. 
A)  tropomyosin to troponin. 
B)  troponin to myosin. 
C)  tropomyosin with actin. 
D)  troponin to actin. 
E)  myosin to actin.

Question 16

Muscles that are not used or used for very weak contractions experience hypertrophy.

Accepted Answer

A) True 
 B)False

Question 17

Judo is a sport that requires an explosion of energy rather than endurance. The better type of muscle would be

Accepted Answer

A)  slow-twitch fibers with many mitochondria and high blood supply. 
B)  slow-twitch fibers with fewer mitochondria and lower blood supply. 
C)  fast-twitch fibers with many mitochondria and high blood supply. 
D)  fast-twitch fibers with fewer mitochondria and lower blood supply. 
E)  fast-twitch fibers with a reserve of glycogen and fat. 
A)  slow-twitch fibers with many mitochondria and high blood supply. 
B)  slow-twitch fibers with fewer mitochondria and lower blood supply. 
C)  fast-twitch fibers with many mitochondria and high blood supply. 
D)  fast-twitch fibers with fewer mitochondria and lower blood supply. 
E)  fast-twitch fibers with a reserve of glycogen and fat.

Question 18

What is the name of the muscle that you sit on?

Accepted Answer

A)  deltoid 
B)  quadriceps femoris group 
C)  hamstring group 
D)  gluteus maximus 
E)  pectoralis major 
A)  deltoid 
B)  quadriceps femoris group 
C)  hamstring group 
D)  gluteus maximus 
E)  pectoralis major

Question 19

Within a sarcomere, actin and myosin filaments both overlap in the

Accepted Answer

A)  A band. 
B)  Z line. 
C)  H zone. 
D)  I band. 
E)  M band. 
A)  A band. 
B)  Z line. 
C)  H zone. 
D)  I band. 
E)  M band.

Question 20

When the biceps brachii contracts, the lower arm extends.

Accepted Answer

A) True 
 B)False

Exam 19: Musculoskeletal System

Which of the following is a correct association of bone structure and function?

What is the condition in many older women in which the bones become weak and thin?

Which of the following criteria is used in the naming of muscles?

If all of the muscle fibers in the neck, trunk, and legs were to totally relax, the body would collapse. What is the state called where some of the fibers in a particular muscle are always contracted?

The deltoid muscle is shaped like a triangle.

A maximal sustained muscle contraction is called

The vertebrae are part of the appendicular skeleton.

The sarcoplasmic reticulum will release calcium ions after the muscle impulses travel through the

The joints found between the vertebrae are classified as being

Which of the following bones is part of the appendicular skeleton?

Which of the following is a function that is independent of the skeletal system?

The antagonistic muscle to the quadriceps femoris group is the gastrocnemius.

What structure allows the distribution of nutrients to osteocytes?

The plasma membrane of a muscle fiber is called the sarcolemma.

Cross-bridges connect

Muscles that are not used or used for very weak contractions experience hypertrophy.

Judo is a sport that requires an explosion of energy rather than endurance. The better type of muscle would be

What is the name of the muscle that you sit on?

Within a sarcomere, actin and myosin filaments both overlap in the

When the biceps brachii contracts, the lower arm extends.

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