Biology

Animal Tissue and Anatomy

1,349 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 zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

Nictitating membrane is an example of

  1. Analogous structures

  2. Homologous structures

  3. Vestigeal structures

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

Nictitating membrane (Third eyelid or Plica semilunaris). It is thin, transparent and freely movable fold which is used to clean cornea in frog, pigeon, apes etc.

Multiple choice evs wonderful world of bholu aquatic habitat life inside water animal and habitat

Which of the following is the respiratory organ of the frog?

  1. Lungs

  2. Gills

  3. Moist skin and oral cavity

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

Frogs are amphibians that use cutaneous respiration (through their moist skin) and buccal respiration (through their oral cavity) in addition to lungs, especially when submerged.

Multiple choice zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

Lining of brain ventricle and central canal of spinal cord is called as

  1. Ependyma

  2. Endothelium

  3. Mesothelium

  4. Neurosensory
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The ciliated cells that line fluid-filled cavities of ventricles of the brain and central canal of the spinal cord are called as ependyma. The endothelium is the inner most layer of arteries and veins. Mesothelium is the epithelial layer of the thoracic and abdominal cavity. The afferent nerves serve the neurosensory function. 
So, the correct answer is option A.
Multiple choice zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

Meninges are the membranes of connective tissue. What is the location of these membranes in the human body?

  1. Brain and spinal cord

  2. Cerebrum

  3. Mid brain

  4. Spinal cord
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system. Infection of the meninges is called Meningitis. It could be bacterial, Viral, Fungal or Protozoal in origin.
Multiple choice zoology life processes in living organism structure and function of spinal cord the spinal cord spinal cord

Lower part of filum terminale has only

  1. Pia mater

  2. Dura mater

  3. Arachnoid mater

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The filum terminale is an extension of the pia mater from the conus medullaris. The internal part is covered by pia mater, while the external part (filum terminale externum) is covered by a sheath of dura mater.

Multiple choice zoology neural control and coordination structure and function of spinal cord the spinal cord spinal cord

Cavity present in the spinal cord is termed as

  1. Central canal

  2. Fourth ventricle

  3. Volkmanns canal

  4. Iter
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The fourth ventricle present between the brainstem and the cerebellum is called the metacoel. It continues to the spinal cord in the form of the central canal to form the cavity of the spinal cord filled with the cerebrospinal fluid. The central canal is also called the neurocoel.

A. Central canal is the cavity of the spinal cord.
B. The fourth ventricle is present between the brain stem and the cerebellum.
C. Volkmann's canal is present in the long bones.
D. Iter connects the 3rd and the 4th ventricle.
Hence, the correct answer is 'Central canal'

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

The protective covering on the gills are known as

  1. Operculum

  2. Gills

  3. Spiracles

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gills are the respiratory organs of the fishes. It helps in gaseous exchange by absorbing the dissolved oxygen in water. The gills are covered by a bony covering which is known as operculum. It is used for respiration and feeding. Gills have gills lamellae through which the blood flows opposite direction to the water. The dissolved oxygen from the water diffuses into the blood capillaries.  

So, the correct answer is option A.

Multiple choice zoology diseases and immunity body defense system drug-target interaction pharmaceutical products and drug action

Anatomic barrier to disease is 

  1. Skin

  2. Mucous membrane

  3. Mucus and cilia

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The skin and the surface of mucous membranes act as an anatomical barrier and prevent the entry of microorganisms inside the body. The skin maintains the pH about 3 to 5 which retards the growth of microbes and mucous entraps foreign microorganisms and cilia propel microbes out of the body. Thus they prevent the entry of microorganisms. Hence, the correct answer is 'All of the above'.

Multiple choice zoology biodiversity and its classifications vertebrates characteristics of vertebrates classification of organisms

Vertebrates have

  1. Dorsal tubular nerve cord

  2. Ventrally situated heart

  3. Body cavity with alimentary canal

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vertebrates are the organisms which are characterized by the presence of the nerve cord. Vertebrates have the dorsal hollow nerve cord. This nerve cord develops into the central nervous system.
All vertebrates have a ventrally placed heart. The heart may be 2,3 or 4 chambered. Most of the organisms have closed circulatory system.
All vertebrates have a body cavity with alimentary canal. The alimentary canal starts at the mouth and ends at anus. 

Thus, the correct answer is option D. 

Multiple choice evolutionary changes in heart transportation - the circulatory system

The lymph hearts in frog are

  1. 1 pair

  2. 2 pairs

  3. 3 pairs

  4. Absent
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The lymph hearts in frog which carry lymph are two pairs located on dorsal side of frog's body. The front pair is situated below the shoulder blades. The posterior pair is on either side of a long, rod-like bone called as a urostyle. The anterior pair opens into the subclavian vein and the posterior pair into the femoral vein. The pair near the third vertebra pumps lymph into the jugular vein. The other pair at the end of the vertebral column pump lymph into the iliac vein in the legs.

Therefore, the correct answer is option B.

Multiple choice evolutionary changes in heart transportation - the circulatory system

The chambers in heart of fish are 

  1. 1 ventricle and 1 auricle

  2. 1 ventricle and 2 auricles

  3. 2 ventricles and 2 auricles

  4. 2 ventricles and 1 auricle
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fish have 2 chambers, one atrium and one ventricle. Fish hearts draw in deoxygenated blood in a single atrium, and pump it out through a ventricle. This type of system is known as "single circulation type", as blood enters the heart, gets pumped through the gills and out to the body. Thus, the correct answer is option A.

Multiple choice evolutionary changes in heart transportation - the circulatory system

Papillary muscles are located in

  1. Ventricle of rabbit

  2. Dermis of mammalian skin

  3. Orbit of vertebrate eyes

  4. Pylorus of vertebrate stomach
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The muscles present in the ventricles of heart and get attached to atrioventricular valves via chordae tendinae are known as papillary muscles. Their contraction prevents the inversion of theses valves on systole. 
Multiple choice evolutionary changes in heart transportation - the circulatory system

Carotid labyrinth in frog is present on

  1. Brain

  2. Pulmocutaneous trunks

  3. Carotid artery

  4. Index finger of frog
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The amphibian carotid labyrinth is a characteristic maze-like vascular expansion at the bifurcation of the common carotid artery into the internal and external carotid arteries. 

So, the correct option is 'Carotid artery'.