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

Which of the following is an anatomical structure that is a small fold of mucous membrane that extends from the floor of the mouth to the midline of the underside of the tongue?

  1. Sublingual caruncle

  2. Plica fimbriata

  3. Frenulum of tongue

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

Frenulum of tongue is a small fold of mucous membrane that extends from the floor of the mouth to the midline of the underside of the tongue. It tends to limit the movement of the tongue.

Multiple choice

Fenestra rotunda is an opening on the medial wall of the middle ear that leads into the cochlea. Which of the following statements are true about fenestra rotunda?

a. It is the round window in the inner ear. b. It relieves pressure in the inner ear. c. It communicates with the stapes or columella. d. Vibrations in it cause pressure changes in perilymph of scala vestibuli.

  1. Only a and d

  2. Only b and d

  3. Only a and b

  4. Only c and d
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

These points are true about fenestra rotunda. It is the round window in the inner ear and it relieves pressure in the inner ear. 

Multiple choice

Basilar membrane is present in the inner ear. Which of the following sentences is true for the basilar membrane?

  1. It separates endolymph from the corticolymph.

  2. It separates scala media from scala vestibuli.

  3. It separates the scala media from the scala tympani.

  4. It may be involved in the longitudinal propagation of energy in the intact cochlea.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Basilar membrane separates the scala media from the scala tympani. These are two liquid-filled tubes that run along the coil of the cochlea.

Multiple choice

Which of the following foramen lies directly under the eyebrow?

  1. The anterior ethmoidal foramen

  2. The posterior ethmoidal foramen

  3. The infraorbital foramen

  4. The supraorbital foramen

  5. The zygomatico-orbital foramen
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The supraorbital foramen is a bony elongated path located above the orbit and under the forehead. It lies directly under the eyebrow.

Multiple choice

Which of the following statements is/are false?

a. In amoeba, the food is digested by the enzymes secreted by the cell cytoplasm. b. Digestion takes place in hydra in the body cavity. c. Digestion in lower organisms is extracellular, whereas in higher organisms, it is interacellular.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as this statement is false. Digestion in lower organisms is interacellular, whereas in higher organisms, it is extracellular.

Multiple choice

Which of the following is the correct order of the four chambers of the stomach of a ruminant?

  1. Omasum - Abomasum - Rumen - Reticulum

  2. Rumen - Abomasum - Omasum - Reticulum

  3. Rumen - Omasum - Reticulum - Abomasum

  4. Rumen - Reticulum - Abomasum - Omasum

  5. Rumen - Reticulum - Omasum - Abomasum
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option. The food enters the rumen, the largest and the first chamber. From here, the food enters reticulum that is the second chamber. From the mouth, the food is pushed directly into the third chamber called omasum. From omasum, the food enters abomasums, where digestive juices are mixed with semi-liquid food.

Multiple choice

Islets of langerhans are present in:

  1. Liver

  2. Lungs

  3. Pancreas

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

The Islets of Langerhans are regions of the pancreas that contain its endocrine (hormone-producing) cells, such as alpha and beta cells.

Multiple choice

Find the odd one out.

  1. Cranium - Occipital

  2. Facial - Squamosal

  3. Hyoid - Turbinals

  4. Ossicles - Stapes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hyoid is a single bone. Turbinals are facial bones.