Histo Lec: M11 - Cardiovascular System

Question 1

muscular, four-chambered system that is responsible for pumping blood through the vascular network.

Answer 1

Heart

Question 2

the heart’s location?

Answer 2

within the thoracic cavity in a region known as the mediastinum.

Question 3

Fundamental components of the cardiovascular system, responsible for the dynamic transportation of matter and blood products to every cell in the body

Answer 3

Blood vessels

Question 4

Histology of the Heart? The heart is mainly composed of what?

Answer 4

composed of cardiomyocytes and connective tissue. Dense connective tissue with elastic fibers is present in the cardiac/fibrous skeleton

Question 5

Pericardium is divided into?

Answer 5

Superficial fibrous layer and deeper serous layer

Question 6

Layer in the pericardium that is composed of fibrous connective tissue.

Answer 6

Fibrous layer

Question 7

The serous layer further divides into?

Answer 7

Outer layer inseparable from the fibrous pericardium and inner layer overlying the myocardium.

Question 8

Makes up a large part of the cardiac wall.

Answer 8

Myocardium

Question 9

Myocardium is made up of what layers?

Answer 9

Cardiomyocytes

Question 10

consists of a single layer of endothelial cells lining the chambers of the heart.

Answer 10

Endocardium

Question 11

Sinoatrial node is composed of what cells?

Answer 11

Nodal (P) cells and transitional (T) cells

Question 12

What part of the heart branches from the atrioventricular nodes, can be located within the epicardium.

Answer 12

Purkinje fibers

Question 13

The heart valve is composed of what layers?

Answer 13

spongiosa, fibrosa, and ventricularis

Question 14

Heart valve found on the atrial side of atrioventricular valves or the arterial side of semilunar valves.

Answer 14

Spongiosa

Question 15

Heart valve that is an extension of the cardiac skeleton, contains dense irregular connective tissue

Answer 15

Fibrosa

Question 16

Heart valve located on the ventricular side of the valve, has elastic fibers and an endothelial lining.

Answer 16

Ventricularis

Question 17

In the AV valves, branches of the ventricularis form the ________?

Answer 17

Chordae tendineae

Question 18

The chordae tendineae is predominantly made up of?

Answer 18

Dense regular connective tissue, along with collagen elastic fibers.

Question 19

the outermost layer of the vessel wall

Answer 19

tunica externa, or tunica adventitia

Question 20

Blood vessel structure responsible for vessel integrity and resisting physical wall strain

Answer 20

Tunica externa

Question 21

is the middle layer of the vessel wall

Answer 21

Tunica media

Question 22

Structure of blood vessel is generally thicker on the arterial side of the vascular system and contains transversely arranged smooth muscle cells that are capable of changing the caliber of the vessel lumen

Answer 22

Tunica media

Question 23

Innermost layer of the vessel wall that has exposure to, and interacts with, the contents of the lumen. It is primarily defined by a single layer of simple squamous endothelial cells that is the innermost layer of any vessel

Answer 23

Tunica intima