Reading Quiz 7 (CH. 4, 5 & 6)

Question 1

Red bone marrow is found within the ________ of spongy bone.

a. osteons
b. compact bone
c. trabeculae
d. metaphysis

Answer 1

c. trabeculae

Question 2

Stimulation of osteoclasts by PTH (parathyroid hormone) and inhibition of osteoblasts occurs under what condition?

a. hypocalcemia
b. hypercalcemia
c. hyperpnea
d. hypopnea

Answer 2

a. hypocalcemia

Question 3

Cells found within cartilage are called __________.

a. myocytes
b. leukocytes
c. osteocytes
d. chondrocytes

Answer 3

d. chondrocytes

Question 4

Mature bone cells found within spongy bone and compact bone are called _________.

a. osteocytes
b. keratinocytes
c. chondrocytes
d. melanocytes

Answer 4

a. osteocytes

Question 5

Synovial joints include ball and socket, condyloid, gliding, saddle, hinge, and pivot. What specific type of cartilage is found on the ends of bones that form synovial joints?

a. fibrocartilage
b. elastic cartilage
c. hyaline cartilage
d. spongy cartilage

Answer 5

c. hyaline cartilage

Question 6

Bone elongation occurs within the _________ of a long bone.

a. epiphyseal plate
b. tendons
c. ligaments
d. melanin

Answer 6

a. epiphyseal plate

Question 7

The greater tubercle is the specific landmark on the ____________ for an IO.

a. distal end of the femur
b. proximal end of the tibia
c. distal end of the tibia
d. proximal end of the humerus

Answer 7

d. proximal end of the humerus

Question 8

Which of the following locations is the correct placement for an IO in the proximal end (closest to the femur) of the tibia?

a. lateral to the tibial tuberosity
b. on the lateral malleolus of the fibula opposite the tibia
c. posterior surface articulation with the fibula
d. one finger width inferior and medial to the tibial tuberosity

Answer 8

d. one finger width inferior and medial to the tibial tuberosity

Question 9

__________ connect some skeletal muscles to bone.

a. ligaments
b. tendons
c. sarcomeres
d. myofibrils

Answer 9

b. tendons

Question 10

The thick contractile protein in cardiac and skeletal muscle is __________.

a. myosin
b. tropomyosin
c. actin
d. troponin

Answer 10

a. myosin

Question 11

The thin contractile protein in cardiac and skeletal muscle is _______.

a. troponin
b. tropomyosin
c. actin
d. myosin

Answer 11

c. actin

Question 12

The regulatory protein where calcium attaches is called _______.

a. troponin
b. tropomyosin
c. actin
d. myosin

Answer 12

a. troponin

Question 13

Contractile and regulatory proteins of skeletal and cardiac muscle are found within the ___________.

a. terminal cisternae
b. ligand gates
c. T-tubule
d. sarcomere

Answer 13

d. sarcomere

Question 14

Cholinergic somatic motor neurons innervate skeletal muscle and secrete ACh onto _____________ receptors that are always stimulatory at the neuromuscular junction.

a. cholinergic (acetylcholine) muscarinic inhibitory
b. adrenergic (EPI and NorEPI) alpha1
c. adrenergic (EPI and NorEPI) beta1
d. cholinergic (acetylcholine) nicotinic stimulatory

Answer 14

d. cholinergic (acetylcholine) nicotinic stimulatory

Question 15

Which of the following is a unique characteristic of cardiac muscle not found in skeletal or smooth muscle tissue?

a. cardiac muscle is aerobic
b. cardiac muscle contains sarcomeres
c. cardiac muscle contains intercalated discs
d. cardiac muscle is involuntary

Answer 15

c. cardiac muscle contains intercalated discs

Question 16

Which of the following skeletal muscle fiber types specifically uses aerobic metabolism to generate ATP?

a. fast twitch II-B
b. slow twitch
c. smooth muscle
d. cardiac muscle

Answer 16

b. slow twitch

Question 17

The __________ is a smooth muscle connected to a hair follicle that causes goose bumps, and is under control of the autonomic nervous system.

a. skeletal muscle
b. cardiac muscle
c. piloerector muscle
d. atrophied muscle

Answer 17

c. piloerector muscle

Question 18

Skeletal muscle fibers that contract with significant force but fatigue easily use ___________ for energy.

a. fatty acids
b. anaerobic metabolism
c. aerobic metabolism
d. protein

Answer 18

b. anaerobic metabolism

Question 19

The layers of the skin from outer to inner are the ______________.

a. dermis - hypodermis/subcutaneous - epidermis
b. epidermis - hypodermis/subcutaneous - dermis
c. epidermis - dermis - hypodermis/subcutaneous
d. hypodermis/subcutaneous - dermis - epidermis

Answer 19

c. epidermis - dermis - hypodermis/subcutaneous

Question 20

All of the following are functions of the integumentary system, EXCEPT:

a. temperature regulation
b. calcium homeostasis
c. innate immunity
d. adaptive immunity

Answer 20

d. adaptive immunity

Question 21

The cells responsible for the production of melanin are ________.

a. keratinocytes
b. melanocytes
c. dendritic cells
d. myocytes

Answer 21

b. melanocytes

Question 22

A scaly red patch on the forehead, that will not heal, is most likely a _______.

a. squamous cell carcinoma
b. basal cell carcinoma
c. melanoma cancer
d. dermatitis

Answer 22

a. squamous cell carcinoma

Question 23

A burn with redness and blisters is classified as a _____________.

a. full thickness/third degree
b. full thickness/fourth degree
c. partial thickness/second degree
d. superficial/first degree

Answer 23

c. partial thickness/second degree

Question 24

The _________ contains sweat glands, sebaceous glands, hair follicles and blood vessels.

a. hypodermis
b. epidermis
c. dermis
d. piloerector muscle

Answer 24

c. dermis

Question 25

An asymmetrical mole that has varying levels of pigmentation throughout is indicative of a _____________.

a. squamous cell carcinoma
b. obstructed sebaceous gland
c. melanoma
d. basal cell carcinoma

Answer 25

c. melanoma

Question 26

A ____________ only involves the epidermis.

a. superficial/first degree
b. full thickness/3rd degree
c. partial thickness/2nd degree
d. full thickness/4th degree

Answer 26

a. superficial/first degree

Question 27

An _________ occurs when a flap of skin is torn loose partially or completely.

a. laceration
b. incision
c. avulsion
d. amputation

Answer 27

c. avulsion

Question 28

Which of the following statements is true?

a. a laceration produces a clean linear cut with minimal bleeding, an incision produces a clean or jagged injury through the skin surface with significant bleeding.
b. abrasions are deep wounds where skin has been punctured by a sharp object, and avulsions are minor injuries that rarely require emergency care.
c. a laceration is an unintentional cut inflicted by a sharp instrument, an incision is an intentional linear cut inflicted by a sharp instrument.
d. a laceration is an intentional cut inflicted by a sharp instrument, an incision is an unintentional linear cut inflicted by a sharp instrument.

Answer 28

c. a laceration is an unintentional cut inflicted by a sharp instrument, an incision is an intentional linear cut inflicted by a sharp instrument.

Question 29

The first step in wound healing is ___________.

a. hemostasis
b. necrosis
c. inflammation
d. vascularization

Answer 29

a. hemostasis

Question 30

Sebaceous glands originate in the dermis and secrete _______ into hair follicles.

a. keratin
b. sweat
c. sebum
d. urea

Answer 30

c. sebum