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

The complex structure of inner ear with membranes, liquids and tubes as a whole is called ___________.

  1. tymphanum labyrinth

  2. membranous labyrinth

  3. inner labyrinth

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The membranous labyrinth is a complex system of interconnected tubes and sacs filled with endolymph within the bony labyrinth of the inner ear. It includes the cochlear duct, semicircular ducts, utricle, and saccule. It contains the sensory receptors for hearing and balance.

Multiple choice

Which among the following parts of male reproductive system enters the prostate gland to empty into the urethra?

  1. Seminal vesicle

  2. Ampulla

  3. Ejaculatory duct

  4. Ductus deferens

  5. Epididymis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ejaculatory duct in males is formed by a union of the ampulla of the ductus deferens and the duct of the seminal vesicle. This duct receives secretions from the seminal vesicle and prostate gland and penetrates the prostate gland where it empties into the urethra.

Multiple choice

The 'end organs of Ruffini' are receptors of

  1. pressure

  2. cold

  3. heat

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

The end organs of Ruffini are specialized sensory receptors located in the skin that respond specifically to heat. They are distinct from receptors for pressure (Pacinian corpuscles), cold (Krause end bulbs), and touch (Meissner's corpuscles).

Multiple choice

Pick an odd-one out.

  1. Nervous tissue : Nodes of Ranvier

  2. Ear : Aqueduct of Sylvius

  3. Bone : Volkman's canal

  4. Eye : Canal of Schlemm
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Aqueduct of Sylvius is a canal located in the midbrain that connects the third and fourth ventricles of the brain, not a structure found in the ear. The other options correctly pair a tissue or organ with a specific anatomical structure found within it.

Multiple choice

Which of the following sets represents vestigial organs?

  1. Vermiform appendix, body hair and patella

  2. Wisdom teeth, body hair and atlas vertebra

  3. Ear muscles, cochlea and coccyx

  4. Vermiform appendix, ear muscles and coccyx
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vestigial organs are structures that have lost their original ancestral function. The vermiform appendix, ear muscles (auricular muscles), and the coccyx (tailbone) are well-known examples in humans.

Multiple choice

Splint bones of horse are vestigial

  1. Ulna and Fibula bones

  2. 2nd and 3rd fingers

  3. 2nd and 4th fingers

  4. Humerus and Femur bones
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the evolution of the horse, the lateral digits (the 2nd and 4th fingers/toes) were reduced to vestigial structures known as splint bones.

Multiple choice

Haversian canals are interconnected by

  1. Hyloid canal

  2. Volkmann's canal

  3. Clockwatt's canal

  4. Schliman's canal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Haversian canals, a characteristic feature of the mammalian bones, are present in the matrix. The Haversian canals are interconnected by transverse canals called Volkmann's canals.