Tag: zoology

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Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Neural tissue is made up of

  1. Neutrons

  2. Electrons

  3. Neurons

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

Neural tissue or nervous tissue is the main tissue component of the nervous system. It helps in the transmission of the nerve impulse from the sensory organs to the brain through the spinal cord and from the brain to the effector organ via the spinal cord.

So, the answer is 'Neurons'.

Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Cell bodies of neurons form

  1. Grey matter

  2. White matter

  3. Brain

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

Grey matter refers to the non-myelinated neurons and other cells of the central nervous system (CNS). The grey matter is the main component of CNS, consisting of cell bodies, dendrites, glial cells, synapses and capillaries.

So, the answer is 'Grey matter'.

Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Which of the following conducts messages?

  1. Epithelial cells

  2. Cardiac cells

  3. Nerve cells

  4. Skeletal cells
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Human body contains millions of nerve cells that transmit such messages or impulses. Nerve cells are made up of dendrites, cell body and axon. The dendrites are branching fibres that receive the signals from the axon terminal of the other neuron and pass is to cell body. Cell body then pass the message further to axon.
So, the correct answer is 'Nerve cells'.
Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Which of the following is formed of neural tissue?

  1. Spinal cord and brain

  2. Kidneys

  3. Gall bladder and abdomen

  4. Esophagus and bronchi
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Neural tissue or nervous tissue consists of central nervous system and peripheral nervous system. The central nervous system is made up of the spinal cord and the brain. The peripheral nervous system consists of the nerves made up of nerve cells called neurons.

So, the correct answer is 'Spinal cord and brain'.

Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Which of the following horn has spinal cord tract?

  1. Anterioar horn

  2. Posterior horn

  3. White matter

  4. Gray matter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Posterior horn is a part of grey matter that has spinal cord tract. It receives the sensory information like touch and sensation via sensory neurons from different parts of the body.  It is also known as dorsal horn due to its presence in dorsal side of the body. 
So the correct answer is 'Posterior horn'.
Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Which of the following belongs to the neural tissues?

  1. Granulosa cells

  2. Cardiac cells

  3. Epithelial cells

  4. Nerve cells
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Nerve cells are also called neurons. They constitute the neural tissue. They are the largest cell in the human body. They are the structural and functional unit of the nervous system. 
So correct option is 'Nerve cells'.
Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

A nerve

  1. Contains a single axon

  2. Is found only in CNS

  3. Carries only sensory information

  4. Is a cablelike bundle of parallel axons
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Human brain consists of more than 100 billion nerve cells. These cells are further interlinked with each other and form complex nerve connections. A Nerve cell has many dendrites but has single axon through which electrical impulses are transmitted.
So the correct answer is 'Contains a single axon'.
Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Collateral fibres are given out along its way in ______________.

  1. Muscle fibre

  2. Axon

  3. Dendron

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

Collateral fibers are branches that emerge from the main axon along its length, allowing a single neuron to communicate with multiple target cells.

Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Centrosomes are absent in ______________.

  1. Nerve cells

  2. Epithelial cells

  3. Germinal cells

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

Mature nerve cells (neurons) are specialized cells that have lost the ability to divide, and they lack centrosomes, which are required for cell division.

Multiple choice zoology nervous system neural tissue structure of neuron nervous tissues

Which of the following is not considered to be a tissue?

  1. cartilage

  2. Blood

  3. Lung

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

Cartilage is supportive non-living soft connective tissue

Blood is fluid connective tissue
Cardiac muscle is a tissue made of cardiac cells
So, the correct option is 'Lung', which is an organ made of multiple tissue