Lecture 3

Question 1

What is the integumentary system?

Answer 1

Skin, hair, nails, sweat glands

Question 2

What is the structure of the skin?

Answer 2

-Epidermis
-Dermis
-Subcutaneous/Hypodermis

Question 3

How many layers does the epidermis have?

Answer 3

5
-Stratum Corneum
-Stratum Lucidum
-Stratum Granulosum
-Stratum Spinosum
-Stratum basale (Stratum Germinativum)

Question 4

What is the function of the Stratum Basale?

Answer 4

Melanocytes (color, freckles)

Question 5

What is in the dermis?

Answer 5

Most of the accessory structures of the skin
-Blood/lymph vessels, nerve endings, sweat glands, oil glands, hair, dermal papillae

Question 6

What is the extension of the dermis into the epidermis?

Answer 6

Dermal Papillae

Question 7

What layer of the skin do you find the sebaceous glands?

Answer 7

Dermis

Question 8

What is the composition of the subcutaneous layer?

Answer 8

Fibroblasts, adipocytes, and blood vessels.

Question 9

What is the function of the subcutaneous layer?

Answer 9

Connects skin to surface muscles, fat storage/energy supply, helps regulate body temp.

Question 10

Some skin glands produce oily secretion called sebum. What are the name of the glands?

Answer 10

Sebaceous glands

Question 11

What is the scientific name for sweat glands?

Answer 11

Sudoriferous glands

Question 12

What are the 5 Sudoriferous (sweat glands)?

Answer 12

-Eccrine
-Apocrine
-Ceruminous
-Ciliary
-Mammary

Question 13

How do the sebaceous glands and apocrine sweat glands secrete to the outside?

Answer 13

Excretory duct

Question 14

What two categories of tissues repair themselves most?

Answer 14

Epithelial tissues and connective tissues

Question 15

What is the name for a cancer of the skins pigment producing cell?

Answer 15

Melanoma

Question 16

What is the function of the skeletal system?

Answer 16

Framework, Protect, movement, store calcium

Question 17

What is the end of the long bone called?

Answer 17

Epiphysis

Question 18

What is the central shaft of a long bone?

Answer 18

Diaphysis

Question 19

What part of the bone is made up by fat cells?

Answer 19

Yellow marrow

Question 20

What part of the bone consists of mainly hematopoietic tissue?

Answer 20

Red marrow

Question 21

What membrane covers the shaft of the long bone?

Answer 21

Periosteum

Question 22

What thin membrane lines the medullary cavity?

Answer 22

Endosteum

Question 23

What is the bone tissue terminology?

Answer 23

-Harvesian System (Osteons)
-Harvesian Canal (Canal of Havers)

Question 25

Which layer of the skin is responsible for protection against microorganisms, chemicals, and physical damage?
a) Epidermis
b) Dermis
c) Subcutaneous or Hypodermis
d) Stratum corneum

Answer 25

A. Epidermis

Question 26

What is the primary function of melanocytes in the skin?
a) Regulation of body temperature
b) Synthesis of vitamin D
c) Protection against microorganisms
d) Production of melanin for skin color and UV protection

Answer 26

d) Production of melanin for skin color and UV protection

Question 27

Which accessory structure of the skin produces sweat for thermoregulation and excretion?
a) Sebaceous glands
b) Sudoriferous glands
c) Hair follicles
d) Nails

Answer 27

b) Sudoriferous glands

Question 28

Which term refers to the chronic overgrowth of the epidermis, resulting in red, scaly patches?
a) Dermatitis
b) Psoriasis
c) Acne
d) Impetigo

Answer 28

b) Psoriasis

Question 29

What is the primary function of the skeletal system?
a) Producing blood cells
b) Providing a structural framework for the body
c) Temperature regulation
d) Synthesis of vitamin D

Answer 29

b) Providing a structural framework for the body

Question 30

Which type of bone is dense and provides mechanical support and protection?
a) Compact bone
b) Spongy bone
c) Yellow bone marrow
d) Cancellous bone

Answer 30

a) Compact bone

Question 31

Ossification is the process of converting:
a) Cartilage to bone
b) Blood to bone
c) Bone to cartilage
d) Fat to bone

Answer 31

a) Cartilage to bone

Question 32

Which disorder is characterized by the abnormal growth of skin cells caused by UV radiation exposure?
a) Dermatitis
b) Psoriasis
c) Skin cancer
d) Acne

Answer 32

c) Skin cancer

Question 33

Which joint classification is slightly movable?
a) Fibrous joints
b) Cartilaginous joints
c) Synovial joints
d) Saddle joints

Answer 33

b) Cartilaginous joints

Question 34

Which skeletal disorder is characterized by a decrease in bone density and increased risk of fractures?
a) Osteoporosis
b) Osteomalacia
c) Paget’s disease
d) Osteomyelitis

Answer 34

a) Osteoporosis

Question 35

Which are functions of the skin? Select all that apply.
a) Protecting against microorganisms
b) Regulating body temperature
c) Producing vitamin D
d) Synthesizing hemoglobin
e) Absorbing substances

Answer 35

A, B, C, D, E

Question 36

Which structures are considered accessory structures of the skin? Select all that apply.
a) Sebaceous glands
b) Sweat glands
c) Hair follicles
d) Nails
e) Blood vessels

Answer 36

A, B, C, D, E

Question 37

Which skin conditions are caused by infections? Select all that apply.
a) Dermatitis
b) Psoriasis
c) Skin cancer
d) Acne
e) Impetigo
f) Fungal infections
g) Viral infections

Answer 37

A, B, C, D, E, F, G

Question 38

Which are examples of common bone disorders? Select all that apply.
a) Osteoporosis
b) Osteomalacia
c) Paget’s disease
d) Osteomyelitis
e) Scoliosis
f) Rheumatoid arthritis
g) Osteosarcoma
h) Chondrosarcoma

Answer 38

A, B, C, D, E, F, G, H

Question 39

Which joints are considered synovial joints? Select all that apply.
a) Fibrous joints
b) Cartilaginous joints
c) Ball-and-socket joints
d) Hinge joints
e) Pivot joints
f) Saddle joints

Answer 39

A, B, C, D, E, F