Blood, Circulatory, And Immune Practice Test

57 Questions | By Liellenr | Updated: Mar 21, 2022 | Attempts: 576

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Blood, Circulatory, And Immune Practice Test - Quiz

Have you ever wondered what makes up a circulatory system and the coordination between these organs? Circulatory system is the portion of the cardiovascular system that pumps out oxygen depleted blood from the heart and pump in oxygenated blood through the pulmonary vein. Take up the blood, circulatory, and immune practice test and understand how this process works.

Questions and Answers

1.

What is the function of the SA node?
- A.
  
  Spontaneously produces action potentials at regular intervals
- B.
  
  Atria depolarizes first, causing atrial systole
- C.
  
  "Pacemaker"
- D.
  
  All of the above
2.

Which is not a part of an EKG?
- A.
  
  P-wave
- B.
  
  ESG connector
- C.
  
  QRS complex
- D.
  
  T-wave
3.

We can measure the heart's electrical activity (and overall health) by taking
- A.
  
  Pacemakers
- B.
  
  BP
- C.
  
  Electrocardiograms (ECG/EKG)
- D.
  
  Heart transplants
4.

What brain structure regulates heart rate?
- A.
  
  Medulla oblongata
- B.
  
  Brainstem
- C.
  
  Midbrain
- D.
  
  Pons
5.

Mark all the characteristics of arteries
- A.
  
  Have thicker walls and smaller lumens
- B.
  
  Have thinner walls and larger lumens
- C.
  
  Tend to be rounder and deeper under the skin than veins
- D.
  
  Do not contain valves
- E.
  
  Skeletal muscle contraction pushes blood through veins
- F.
  
  Pressure from the heart moves blood through arteries
6.

Mark all the characteristics of veins
- A.
  
  Have thinner walls and larger lumens
- B.
  
  Do not contain valves
- C.
  
  Tend to be flatter/oval-shaped, closer to the surface of the skin
- D.
  
  Have one-way valves that keep blood flowing in the right direction
- E.
  
  Skeletal muscle contraction pushes blood through veins
- F.
  
  Pressure from the heart moves blood through arteries
7.

Veins carry blood toward the heart
- A.
  
  True
- B.
  
  False
8.

Arteries carry blood away from the heart
- A.
  
  True
- B.
  
  False
9.

Systolic pressure is when the heart
- A.
  
  Relaxes
- B.
  
  Contracts
10.

Diastolic pressure is when the heart
- A.
  
  Relaxes
- B.
  
  Contracts
11.

Normal BP is 120/80 what is the top number called?
- A.
  
  Systolic pressure
- B.
  
  Diastolic pressure
12.

Normal BP is 120/80 what is the bottom number called?
- A.
  
  Systolic pressure
- B.
  
  Diastolic pressure
13.

Another name for RBCs are
- A.
  
  Hemocytoblasts
- B.
  
  Hemoglobin
- C.
  
  Erythrocytes
- D.
  
  Hematocrit
14.

Mark all the characteristics of erythrocytes
- A.
  
  Limited life span- cannot self-repair or undergo mitosis
- B.
  
  Small, round, red, donut-shaped cells
- C.
  
  They are anucleate - they don't have a nucleus
- D.
  
  Help fight infection
- E.
  
  Have cilia to move around
15.

Percentage of blood composed of red blood cells
- A.
  
  Hemocytoblasts
- B.
  
  Hemocrit
- C.
  
  Hemoglobin
- D.
  
  Hematopoiesis
16.

Protein that makes up most of a RBC
- A.
  
  Hemoglobin
- B.
  
  Hematocrit
- C.
  
  Oxygen
- D.
  
  Hematopoiesis
17.

In hemoglobin each proteins contains single iron (Fe) atom
- A.
  
  True
- B.
  
  False
18.

(How hemogobin carries oxygen) When _____levels are high, Fe can bind to _____ molecules - lungs and most arteries - protein is bright red
- A.
  
  O2
- B.
  
  CO2
- C.
  
  C
- D.
  
  H
19.

(hemoglobin carries oxygen) When _________ levels are high, Fe can bind to ________ instead - tissue, capillaries, most veins - protein is dark red
- A.
  
  C
- B.
  
  Fe
- C.
  
  CO2
- D.
  
  Cl
20.

Are blood stem cells in red bone marrow
- A.
  
  Hemoglobin
- B.
  
  Hemocytoblasts
- C.
  
  Hematopoiesis
- D.
  
  Homeostasis
21.

What is the name for the process which hemocytoblasts undergo to become RBCs, platelets, and different kinds of WBCs?
- A.
  
  Differentiation
- B.
  
  Erythropoietin
- C.
  
  Initiation
- D.
  
  Mitosis
22.

Hematopoiesis is the production of new blood cells
- A.
  
  True
- B.
  
  False
23.

Hematopoiesis occurs in the
- A.
  
  Red bone marrow
- B.
  
  White bone marrow
24.

Hematopoiesis is regulated by the hormone
- A.
  
  Hemoglobin
- B.
  
  Adrenalin
- C.
  
  Platelets
- D.
  
  Erythropoeitin
25.

On average, red blood cells live for 120 days
- A.
  
  True
- B.
  
  False