Circulatory System Part II

Question 1

conducts blood away from the organs and tissues to the heart

Answer 1

VEINS

Question 2

Types of Veins:

Answer 2

A. LARGE VEINS
B. SMALL AND MEDIUM VEINS
C. VENULES

Question 3

Large Veins:

Answer 3

Vena Cava
Pulmonary Veins
Mesenteric Vein

Question 4

SMALL AND MEDIUM VEINS:

Answer 4

External Jugular Vein

Question 5

Unnamed and Involved the exchanged of metabolites and diapedesis

Answer 5

VENULES

Question 6

Three basic layers of veins:

Answer 6

Tunica Intima
Tunica Media
Tunica Adventitia

Question 7

Three basic layers of veins:

simple squamous (endothelium)

Answer 7

Tunica Intima

Question 8

Three basic layers of veins:

no internal elastic layer

Answer 8

Tunica Intima

Question 9

Three basic layers of veins:

subendothelium is lacking

Answer 9

Tunica Intima

Question 10

Three basic layers of veins:

composed of smooth muscles

Answer 10

Tunica Media

Question 11

Three basic layers of veins:

thinnest coat

Answer 11

Tunica Media

Question 12

Three basic layers of veins:

thickest coat

Answer 12

Tunica Adventitia

Question 13

Three basic layers of veins:

no external elastic layer

Answer 13

Tunica Adventitia

Question 14

Three basic layers of veins:

Fibroelastic connective tissue and fibers

Answer 14

Tunica Adventitia

Question 15

Three basic layers of veins:

has vasa vasorum

Answer 15

Tunica Adventitia

Question 16

What type of endothelial layer is there in capillaries?

Answer 16

single layer of endothelial cells (simple squamous)

Question 17

exhibits selective permeability by permitting exchange of oxygen and carbon dioxide, nutrients, and waste products between blood and tissues

Answer 17

CAPILLARIES

Question 18

does not exhibit tunica media and adventitia

Answer 18

CAPILLARIES

Question 19

diameter ranges from 7-9 um

Answer 19

CAPILLARIES

Question 20

branch without a change in their diameter

Answer 20

CAPILLARIES

Question 21

are variable in length, but in general they are approximately 1mm long.

Answer 21

CAPILLARIES

Question 22

Red blood cells flow through most capillaries in a single pile & are frequently folded as they pass through the smaller-diameter capillaries.

Answer 22

CAPILLARIES

Question 23

The ______ consists primarily of endothelial cells which rest on a basement membrane. Outside the basement membrane is a delicate layer of loose connective tissue that merges with the connective tissue surrounding the capillary.

Answer 23

capillary wall

Question 24

Along the length of the capillary are some scattered cells that are closely associated with the endothelial cells. These scattered cells lie between the basement membrane and the endothelial cells and are called _____

Answer 24

pericapillary cells

Question 25

They are apparently fibroblasts, macrophages, or undifferentiated smooth muscle cells.

Answer 25

pericapillary cells

Question 26

Types of Capillaries:

Answer 26

A. CONTINUOS (SOMATIC) CAPILLARIES B. FENESTRATED (VISCERAL) CAPILLARIES C. SINUSOIDAL CAPILLARIES

Question 27

Types of Capillaries: most common

Answer 27

CONTINUOS (SOMATIC) CAPILLARIES

Question 28

Types of Capillaries: contains numerous pinocytic vesicles, except in the Central Nervous System

Answer 28

CONTINUOS (SOMATIC) CAPILLARIES

Question 29

Types of Capillaries: lack fenestra and have continuous basal lamina

Answer 29

CONTINUOS (SOMATIC) CAPILLARIES

Question 30

Types of Capillaries: their walls exhibit no gaps between endothelial cells

Answer 30

CONTINUOS (SOMATIC) CAPILLARIES

Question 31

Types of Capillaries: endothelial cells are joined and form an uninterrupted solid lining

Answer 31

CONTINUOS (SOMATIC) CAPILLARIES

Question 32

Continuous (Somatic) Capillaries is located at:

Answer 32

- nervous tissue - muscles - connective tissue - exocrine glands - respiratory and skin

Question 33

Continuous (Somatic) Capillaries is present in:

Answer 33

- tight junctions - desmosomes - gap junctions

Question 34

Types of Capillaries: characterized by openings or fenestrations (pores)

Answer 34

FENESTRATED (VISCERAL) CAPILLARIES

Question 35

Types of Capillaries: Function of this is the rapid exchange of molecules between blood and the tissue

Answer 35

FENESTRATED (VISCERAL) CAPILLARIES

Question 36

FENESTRATED (VISCERAL) CAPILLARIES is located at:

Answer 36

- choroid plexus - endocrine - small intestines - kidney glomeruli

Question 37

Types of Capillaries: are blood vessels that exhibit irregular, tortuous path

Answer 37

SINUSOIDAL CAPILLARIES

Question 38

Types of Capillaries: their much wider diameters slow down the flow of blood.

Answer 38

SINUSOIDAL CAPILLARIES

Question 39

Types of Capillaries: endothelial cell junctions are rare in _____ and wide gaps exist between individual endothelial cells

Answer 39

SINUSOIDAL CAPILLARIES

Question 40

Types of Capillaries: basement membrane underlying the endothelium is either incomplete or absent (so a direct exchange of molecules occurs between blood contents and cells)

Answer 40

SINUSOIDAL CAPILLARIES

Question 41

SINUSOIDAL CAPILLARIES is located at:

Answer 41

- Liver - Spleen - Bone marrow

Question 42

LYMPHATIC VASCULAR SYSTEM is Consists of:

Answer 42

1. Lymph Capillaries 2. Lymph Vessels

Question 43

To allow greater permeability, the endothelium in ________ is extremely thin.

Answer 43

lymph capillaries and vessels

Question 44

The structure of _______is similar to that of veins except that their walls are much thinner.

Answer 44

larger lymphatic vessels

Question 45

_____ contain more valves to prevent a backflow of collected lymph.

Answer 45

Lymph vessels

Question 46

________ in the lymphatic vessels is similar to that of blood movement; that is, the contractions of surrounding skeletal muscles force the lymph to move forward

Answer 46

Lymph movement

Question 47

found in all tissues except the CNS, cartilage, bone and bone marrow, thymus, placenta, and teeth

Answer 47

LYMPHATIC VASCULAR SYSTEM