Question 1

Which of the following best describes the difference between a tissue and an organ?

Accepted Answer

A tissue is a group of similar cells performing a common function, while an organ consists of multiple tissue types working together for a specific function.

Question 2

Which of the following is NOT one of the four main tissue types in the human body?

Accepted Answer

Adipose tissue

Question 3

A sample of epithelial tissue is observed under a microscope. It consists of a single layer of flat cells. Which type of epithelial tissue is this?

Accepted Answer

Simple squamous epithelium

Question 4

Which connective tissue type is primarily responsible for storing energy and providing insulation?

Accepted Answer

Adipose tissue

Question 5

Arrange the layers of the skin in order from outermost to innermost.

Accepted Answer

Epidermis, dermis, hypodermis

Question 6

Which part of a long bone contains the bone marrow responsible for blood cell production?

Accepted Answer

Medullary cavity

Question 7

Articular cartilage is found at the ends of long bones. What is its primary function?

Accepted Answer

To provide a smooth surface for joint movement and reduce friction

Question 8

Which cell type is responsible for bone resorption during bone remodeling?

Accepted Answer

Osteoclasts

Question 9

A patient increases their weight-bearing exercise regimen. What is the expected effect on their bone density, and which process is primarily responsible?

Accepted Answer

Bone density increases due to increased osteoblast activity

Question 10

Which of the following muscle types is both striated and involuntary?

Accepted Answer

Cardiac muscle

Question 11

In the sarcomere, which protein forms the thick filament responsible for muscle contraction?

Accepted Answer

Myosin

Question 12

Which of the following best explains why blood is considered a tissue?

Accepted Answer

Blood is composed of cells that perform a common function and are surrounded by a nonliving matrix (plasma).

Question 13

Which blood component is primarily responsible for clotting during hemostasis?

Accepted Answer

Platelets

Question 14

A patient with anemia is most likely to have which of the following symptoms?

Accepted Answer

Fatigue due to reduced oxygen-carrying capacity

Question 15

Which formula correctly represents the calculation of cardiac output ($CO$) in terms of heart rate ($HR$) and stroke volume ($SV$)?

Accepted Answer

$CO = HR 	imes SV$

Question 16

Which heart chamber receives oxygen-poor blood from the body?

Accepted Answer

Right atrium

Question 17

The SA node is known as the pacemaker of the heart because:

Accepted Answer

It initiates electrical impulses that set the rhythm for heart contraction.

Question 18

Which ECG wave represents ventricular depolarization?

Accepted Answer

QRS complex

Question 19

Which of the following best describes the difference between arteries and veins?

Accepted Answer

Arteries have thicker walls and carry blood away from the heart; veins have thinner walls and carry blood toward the heart.

Question 20

A patient with leukemia is most likely to have which abnormality?

Accepted Answer

Abnormal proliferation of white blood cells

Anatomy & Physiology: Study Guide for Exam #2 (Cells, Tissues, Skin, Bones, Muscles, Blood, Heart, and Circulation)

Study Guide - Practice Questions

Study Guide - Flashcards