Biology

Animal Tissue and Anatomy

1,715 Questions

Test your knowledge of animal tissues and anatomical structures with these practice questions. The set covers human organs, reproductive systems, and sensory receptors. These fundamental biology topics frequently appear in medical and competitive examinations.

Sensory receptorsReproductive organsBody structure frameworkEar drum pressureExcretory system

Animal Tissue and Anatomy Questions

Multiple choice

Match the following:

 
a. Septal nephridia 1. It is present as three paired tufts in the 4th, 5th and 6th segments.
b. Integumentary nephridia 2. It is attached to lining of the body wall of segment 3 to the last that opens on the body surface.
c. Pharyngeal nephridia 3. It is present on both the sides of intersegmental septa of segment 15 to the last that opens into the intestine.

  1. a - 2, b - 3, c - 1

  2. a - 2, b - 1, c - 3

  3. a - 1, b - 2, c - 3

  4. a - 3, b - 2, c - 1

  5. a - 3, b - 1, c - 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Septal nephridia is present on both the sides of intersegmental septa of segment 15 to the last that opens into the intestine. Integumentary nephridia is attached to lining of the body wall of segment 3 to the last that opens on the body surface.

Multiple choice

In human beings, Hassall's corpuscles are generally found in

  1. peripheral blood

  2. bone marrow

  3. spleen

  4. thymus

  5. Peyer's patches
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Whorled aggregates of epithelial cells form these highly characteristic structures found in the thymus. They serve as a disposal system for dying thymocytes.

Multiple choice

With which of the following are villi associated?

  1. Lungs and intestine

  2. Placenta and intestine

  3. Plasma membrane and intestine

  4. Stomach and intestine

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Villi are finger-like projections that increase surface area for absorption. In the small intestine, intestinal villi absorb nutrients from digested food. In the placenta, chorionic villi facilitate exchange of nutrients and wastes between maternal and fetal blood. Villi are not found in lungs (which have alveoli), plasma membrane (a cellular structure), or stomach (which has rugae instead).

Multiple choice

The right and left lobes of human liver are separated by falciform ligament. The right lobe is differentiated into

  1. right lobe proper

  2. quadrate lobe

  3. caudate lobe

  4. all of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The liver is divided into right and left lobes by the falciform ligament. The right lobe is further subdivided into anatomical regions: the right lobe proper (the main portion), quadrate lobe (on the inferior surface), and caudate lobe (posterior portion). This question tests detailed hepatic anatomy knowledge.

Multiple choice

Columnar epithelium lines the inner walls of _______.

  1. stomach, pharynx and intestines

  2. lungs, sweat glands and skin

  3. heart, blood and lymph vessels

  4. thyroid, salivary and sweat glands

  5. heart, lungs and skin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Columar epithelium lines the inner walls of the stomach, intestine, pharynx and larynx. It is made of elongated, and column-like cells.

Multiple choice

Most busy organ is

  1. brain

  2. eyes

  3. heart

  4. ears
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The heart (cardiac muscle) works continuously from birth to death, pumping blood 24/7 without rest. While the brain is always active, the heart performs constant mechanical work, making it the most consistently busy organ.

Multiple choice

Which of the following organ systems protects the internal organ of the body?

  1. Skeletal system

  2. Muscular system

  3. Both (1) and (2)

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The skeletal system forms a hard bony cage protecting vital organs like the brain, heart, and lungs. Muscular layers around these organs provide additional cushioning and support, creating a multi-layered defense mechanism for internal organs.