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Nervous System Pt 1 > Cardio Vascular System Pt3 > Flashcards

Cardio Vascular System Pt3 Flashcards

0
Q

-is the center of the cardiovascular system, and is an efficient pump responsible for circulating blood throughout the body.

A

The HEART

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1
Q

Made up of the blood, heart and blood vessels

A

Cardiovascular system

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2
Q

The heart is surrounded by a sac, which serves to protect the heart and anchor it to the surrounding tissue

A

Pericardium

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3
Q
  • is in a unique cardiac muscle tissue found only in the heart
A

Myocardium

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4
Q

What are the hearts 4 chambers made up of

A

2 atria and 2 ventricles

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5
Q

Are smaller with thinner walls, blood is collected here and pumped into the ventricles for further distribution

A

Atria

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6
Q

-are larger thicker walled chambers that pump blood to the lungs and the rest of the body

A

Ventricles

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7
Q

The atria and the two ventricles are separated by a thick wall known as

A

Septum

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8
Q

Lies between the right atrium and right ventricle

A

Tricuspid valve

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9
Q

Regulates blood flow of blood from the left atrium to the left ventricle

A

Mitral valve

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10
Q

Highly specialized connective tissue consisting of cells in a fluid medium, and is composed of two portions

  1. Formed elements-cells and cell like structure
  2. Plasma- liquid containing dissolved substance
A

BLOOD

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11
Q

Red blood cells, they transports oxygen from the lungs to the cells and carbon dioxide from the cells to the lungs

A

Erythrocytes

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12
Q

White blood cells, they fight infection

A

Leukocytes

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13
Q

Cell fragments that play a role in clotting

A

Thrombocytes

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14
Q

The straw color liquid portion of the blood

A

Plasma

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15
Q

When certain constituents of plasma move out of the blood through the capillary walls, it bathes the cells

A

Interstitial fluid

16
Q

What
-transports-oxygen from lungs to the rest of body;carbon dioxide from cells to the lungs, heat from various cells, nutrients from the gastrointestinal tract to cells, waste products from the cells , hormones from the endocrine glands to the cells

17
Q

It regulates - ph through buffers and

Normal body temperature

18
Q

It protects against - blood loss through clotting mechanism and
Foreign microbes and toxins through certain white blood cells that are phagocytic or specialized proteins such as antibodies, interferon , and complement

19
Q

Arteries, arterioles, capillaries, veins, and venues are all

A

Blood vessels

20
Q

Vessels that carry blood from the heart to the tissues

21
Q

Smaller arteries

A

Arterioles

22
Q

Microscopic vessels where two-way transport between the blood and the tissues takes place

A

Capillaries

23
Q

Thinner walled vessels that carry deoxygenated and waste laden blood from the capillaries back to the heart

24
Q

Small veins formed by groups of capillaries

25
Q

What are the three layers of the veins and arteries

A 
Tunica adventita (outer layer )
Tunica media (middle layer)
Tunica intima ( inner layer)
26
Q

Is composed of connective tissue with collagen and elastic fibers allowing the walls to stretch

A

Tunica adventita

27
Q

Is composed of smooth muscle and elastic fibers

A

Tunica media middle layer

28
Q

Is composed of endothelium.- capillary walls that are very thin are composed of the endothelium

A

Tunica intima

29
Q

Refers to the amount of blood that passes through a blood vessel

A

Blood flow

30
Q

Pressure exerted by the blood on the walls of a blood vessel

A

Blood pressure

31
Q

Amount of blood pumped by one squeeze of the heart; in a damaged heart, blood is pumped out the same but less of it goes through

A

Stroke volume

32
Q

Calculated by multiplying stroke volume by heart rate

A

Cardiac out put

33
Q

True or false

The left ventricle pumps blood through the aorta, which is the largest artery in the body.

34
Q

Is a non specific defensive response of the body elicited by tissue damage. Tissue damage causes specialized cells known as mast cells to release various chemicals including histamine

A

Inflammation

35
Q

An increase in diameter in the blood vessels, allows more blood to go to the damaged area

A

Vasodilation

36
Q

Substances normally retained in blood are permitted to pass from the blood vessels, it permits defensive substances in the blood to enter the injured area. This includes infection fighting cells and clotting factors

A

Increased permeability

37
Q
  • results in the characteristics signs and symptoms of inflammation; redness, heat, pain, and swelling and 5th is loss of function
A

Inflammation (more)

Nervous System Pt 1 (8 decks)

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