Blood Physiology and Constituents Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the listed options does blood NOT transport?

Antibodies (correct)

Nutrients

Oxygen

Hormones

Why is blood classified as connective tissue?

Because it has a liquid matrix.

Because it connects different bodily systems.

Because its cells are suspended in plasma. (correct)

Because it contains cells.

What is the average volume of blood in a human body?

8-9 liters

4-5 liters (correct)

2-3 liters

6-7 liters

What is NOT a function of blood?

Contracting muscles (C) Signup and view all the answers

Which of the following are components of blood? (Select all that apply)

White blood cells (A), Platelets (B), Red blood cells (D), Plasma (E) Signup and view all the answers

What is the main function of the protein albumin in blood?

To help regulate fluid balance and maintain osmotic pressure. (D) Signup and view all the answers

Which of these cells are NOT considered a formed element of blood?

Plasma (C) Signup and view all the answers

What is the primary function of neutrophils in the immune system?

Phagocytizing bacteria and other pathogens. (C) Signup and view all the answers

What is the role of platelets in blood clotting?

To form a plug at the site of injury, initiating clot formation. (A) Signup and view all the answers

Which of the following is NOT directly involved in the blood clotting process?

Albumin (D) Signup and view all the answers

Which type of blood cell is responsible for carrying oxygen to the tissues?

Red Blood Cells (C) Signup and view all the answers

What is the lifespan of a red blood cell?

120 days (B) Signup and view all the answers

What is the role of hemoglobin in carbon dioxide transportation?

Hemoglobin converts CO₂ into bicarbonate ions (HCO₃⁻) for transport. (D) Signup and view all the answers

Where is the majority of blood cell production happening in the body?

Bone marrow (A) Signup and view all the answers

What percentage of formed elements in blood are represented by red blood cells?

99.1% (C) Signup and view all the answers

What is the normal pH range of blood?

7.35 - 7.45 (C) Signup and view all the answers

Which of the following is NOT a common blood test used to evaluate blood clotting?

CBC (Complete Blood Count) (D) Signup and view all the answers

What enzyme is responsible for breaking down fibrin clots?

Plasmin (C) Signup and view all the answers

What is the first step in blood clot formation?

Vasoconstriction (B) Signup and view all the answers

Which of the following white blood cells is most abundant in the blood?

Neutrophils (D) Signup and view all the answers

Which of these options is NOT a function of the blood?

Production of hormones (D) Signup and view all the answers

Study Notes

Blood Physiology

Blood Classification: Blood is classified as connective tissue. It comprises cells suspended in a liquid matrix (plasma).
Average Blood Volume: The average human body contains 4-5 liters of blood, varying with body size and gender.
Blood Functions (Exclusions): Blood transports oxygen and nutrients, regulates body temperature, and protects against infection. It does not produce hormones.
Normal Blood pH: The normal pH range for blood is 7.35-7.45.
Oxygen Binding Protein: Hemoglobin is the oxygen-carrying protein within red blood cells.

Blood Constituents

Plasma Percentage: Plasma constitutes approximately 55% of total blood volume.
Formed Elements: The three formed elements of blood are red blood cells (RBCs), white blood cells (WBCs), and platelets.
RBC Production: Red bone marrow is the site of red blood cell production (hematopoiesis).
RBC Percentage: Red blood cells account for approximately 99.1% of formed elements.
RBC Lifespan: Red blood cells typically survive for about 120 days.

Leukocytes & Platelets

Most Abundant WBC: Neutrophils are the most abundant type of white blood cells (50-80%), acting as the primary responders to infections.
Allergic Responses: Basophils are responsible for triggering allergic reactions by releasing histamine.
Platelet Function: Platelets (thrombocytes) are crucial for blood clot formation, preventing excessive bleeding.

Hemostasis & Blood Tests

First Step in Clot Formation: Vasoconstriction (narrowing of blood vessels) is the first step in blood clot formation.
INR Measurement: International Normalized Ratio (INR) measures blood clotting time.
Blood Clotting Vitamin: Vitamin K is essential for producing clotting factors.
Fibrin Breakdown: The enzyme plasmin breaks down fibrin clots to prevent excessive clotting.
High Hematocrit: A high hematocrit often signifies dehydration, as there's less plasma relative to red blood cells.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on blood physiology and its constituents, including blood classification, volume, and functions. This quiz covers key concepts such as blood pH, hemoglobin, and the formed elements of blood. Explore the essential roles and composition of blood in the human body.