Unit 4

Question 1

What type of connective tissue is unusual because it has a matrix that is fluid?

Answer 1

Blood

Question 2

Which one of the following stains is commonly used to differentiate between nucleic acids within the nucleus and basic cytoplasmic proteins?

Answer 2

Hematoxylin and eosin

Question 3

Which one of the following best estimates the maximum magnification of an electron microscope?

Answer 3

2,000,000

Question 4

There are ____ basic tissue types.

Answer 4

Four

Question 5

Which muscle type below is non-striated?

Answer 5

Smooth muscle

Question 6

The action of which one of the following types of muscle causes the movement of partially digested matter along the intestines?

Answer 6

Smooth muscle

Question 7

_______ muscle is found in the heart and these cells are branched with a single nucleus per cell.

Answer 7

Cardiac

Question 8

_______ muscle tissue is composed of cells having a single nucleus and are not under our conscious control.

Answer 8

Smooth

Question 9

A blister forms from continuous rubbing that pulls the dermis from the hypodermis with fluid collection in the torn region. True or False?

Answer 9

False

Question 10

Which one of the following types of connective tissue makes up the dermis of the skin, fibrous pericardium, heart valves, perichondrium, and periosteum?

Answer 10

Dense irregular connective tissue

Question 11

When an epithelium consists of cells that appear layered but they are all connected to the basement membrane, it is said to be _______.

Answer 11

Pseudostratified

Question 12

Glands that secrete fluids outside the body via ducts are called _______.

Answer 12

Exocrine glands

Question 13

Glands that have lys and secrete hormones directly into the bloodstream are called _______.

Answer 13

Endocrine glands

Question 14

_______ junctions (also called desmosomes) are spot-like welds holding cells together.

Answer 14

Adhering

Question 15

_______ junctions are protein tunnels connecting cytoplasms of two different cells.

Answer 15

Gap

Question 16

_______ junctions form points of adhesion between lining epithelial cells to prevent leakage of molecules from outside to inside the body.

Answer 16

Tight

Question 17

What type of connective tissue contains elastin, a protein which makes the tissue flexible and forms the support for our external ear?

Answer 17

Elastic cartilage

Question 18

Which of the following is the one type of membrane that does not exhibit epithelial cells?

Answer 18

Synovial membrane

Question 19

Choose below the correct order of steps in making a microscope slide from a tissue slice.

Answer 19

Orientation, fixation, embedding, sectioning, staining

Question 20

The skin is composed of what type of epithelium?

Answer 20

Stratified squamous

Question 21

The dermis of the skin is composed of _______.

Answer 21

Dense irregular connective tissue

Question 22

_______ muscle tissue is composed of long cells, multinucleated, usually attached to bone and usually under our conscious control.

Answer 22

Skeletal

Question 23

The lining of the secretory parts of ducts, retina, kidney tubules, ovaries, testes and bronchioles is what type of epithelium?

Answer 23

Simple cuboidal

Question 24

The lining of the gut, parts of uterus, and small bronchi is what type of epithelium?

Answer 24

Simple columnar

Question 25

The lining of blood and lymph vessels, air sacs of lungs and the peritoneum is what type of epithelium?

Answer 25

Simple squamous

Question 26

Which one of the following is a gland that secretes its products in a holocrine manner?

Answer 26

Sebaceous gland

Question 27

Which one of the following best describes the structure of pancreatic acinar glands, and sublingual and submandibular salivary glands?

Answer 27

Compound tubuloacinar glands

Question 28

Which one of the following types of epithelium has the greatest ability to stretch without tearing?

Answer 28

Transitional epithelium

Question 29

Choose the type of fiber that forms strong and flexible bundles and present in fibrocartilage.

Answer 29

Collagen fibers

Question 30

Choose the type of fiber that is strong and stretchable and present in the walls of the lungs.

Answer 30

Elastic fibers

Question 31

Choose the type of fiber that forms fine frameworks and is present in the stromal tissue of the spleen.

Answer 31

Reticular fibers

Question 32

When an epithelium consists of many layers of cells with only the bottom layer of cells attached to basement membrane, it is said to be _______.

Answer 32

Stratified

Question 33

In a _______ feedback mechanism for homeostatic control, the end result of a stimulus is to increase response to further intensify output as during childbirth when the pressure of the fetus on the uterine wall causes increasing contraction until the fetus is born.

Answer 33

Positive

Question 34

In a _______ feedback mechanism for homeostatic control, the end result of the initial stimulus is an effector response which inhibits the further action of the receptor.

Answer 34

Negative

Question 35

The bottom layer of the epidermis has living cells that die and accumulate keratin as they move away from dermis. True or False?

Answer 35

True

Question 36

The epidermis has no blood vessels. True or False?

Answer 36

True

Question 37

On average, males have more RBCs than do females. True or False?

Answer 37

True

Question 38

All cells in the body are bathed by extracellular fluid. True or False?

Answer 38

True

Question 39

Serous membranes line the cavities of the digestive, respiratory and reproductive systems. True or False?

Answer 39

False

Question 40

A group of cells interacting in a common function is called what?

Answer 40

Tissue

Question 41

Which one of the following types of epithelium lines the heart, blood vessels and lymphatic vessels?

Answer 41

Simple squamous epithelium

Question 42

In the control of homeostasis, the _______ is usually a nerve ending which can detect a particular environmental change such temperature, touch or sound.

Answer 42

Receptor

Question 43

When an epithelium consists of a single layer, it is said to be _______.

Answer 43

Simple

Question 44

In the control of homeostasis, the _______ is the final target which receives the signal from the integrator and causes an effect to occur such as muscle shivering in response to cold or increased sweating in response to body heating.

Answer 44

Effector

Question 45

What type of connective tissue has cells which appear as signet rings with the inner space filled with fat and the nucleus appearing as the stone in the signet ring.

Answer 45

Adipose

Question 46

What type of connective tissue contains cells called osteocytes, has a hard matrix and contains collagen fibers?

Answer 46

Bone

Question 47

In the control of homeostasis, the _______ is the portion of the brain such as the hypothalamus that determines where to route the signal from the receptor.

Answer 47

Integrator

Question 48

Which one of the following types of muscle contains individual cells several centimeters long?

Answer 48

Skeletal muscle

Question 49

Epithelium is most likely to be found in which one of the following locations?

Answer 49

Lining the gastrointestinal tract

Question 50

Neurons in the nervous system carry electrical impulses from one part of the body to another. True or False?

Answer 50

True

Question 51

Which one of the following types of connective tissue secretes antiangiogenesis factor and as a result is avascular?

Answer 51

Cartilage

Question 52

Sometimes referred to as respiratory epithelium, which one of the following best describes the epithelium that lines the majority of the upper respiratory airways?

Answer 52

Ciliated pseudostratified columnar epithelium

Question 53

What type of connective tissue is packed with collagen fibers and forms the intervertebral disks?

Answer 53

Fibrocartilage

Question 54

Which one of the following contains a few specialized stem cells called satellite cells which are capable of limited repair?

Answer 54

Skeletal muscle

Question 55

Blood is classified as which one of the following types of tissue?

Answer 55

Connective tissue

Question 56

In the control of homeostasis, the environmental change which is detected by the body is called what?

Answer 56

Stimulus

Question 57

Which one of the following best describes a type of epithelium that is multi-layered and hardened with a fibrous protein?

Answer 57

Keratinized stratified squamous epithelium

Question 58

What is the type of connective tissue which covers the ends of our bones and also forms the supporting elements for the trachea?

Answer 58

Hyaline cartilage

Question 59

________ contains many parallel collagen fibers which resist being stretched and form tendons and ligaments.

Answer 59

Dense regular connective tissue

Question 60

The sheetlike tissue that lines the free surfaces of the body, both the exterior surfaces and interior surfaces is called _______ tissue.

Answer 60

Epithelial