Biology
Human Physiology and Anatomy
2,235 Questions
Human physiology and anatomy explore the structural organization and biological functions of the human body and its systems. Questions focus on the primary roles of organs, hormones, cellular components, and developmental processes. These fundamentals are integral to medical entrance tests and general science sections.
Organ functionsHormone functionsImmune system rolesDigestive systemCellular functions
Human Physiology and Anatomy Questions
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Superior tarsal
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Levator palpebrae superioris
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Occipitalis
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Superior oblique muscle
C
Correct answer
Explanation
Occipitalis muscle is innervated by the posterior auricular nerve.
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Boosting sound pressure
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Controlling ear elevation
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Dampening vibrations
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Dampening the noise produced by chewing
B
Correct answer
Explanation
The temporoparietalis muscle controls ear elevation.
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It prevents blood clotting.
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It prevents heart attack.
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It is produced by bacteria.
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It prevents kidney faliure.
A
Correct answer
Explanation
Correct. The protein is present in leech and prevents blood clotting. Its gene is chemically synthesised and introduced in Brassica napus.
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Pyorrhoea
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Cataract
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Cholera
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Eczema
A
Correct answer
Explanation
Myopia is a condition affecting the eyes. Similarly, pyorrhoea is a condition affecting the teeth and gums.
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Calcium
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Sodium
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Iron
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Phosphorus
B
Correct answer
Explanation
Excessive loss of fluids through vomiting and diarrhea leads to the loss of electrolytes, particularly sodium, which is essential for maintaining fluid balance.
Match the following:
| |
|
| Systems of the body |
Functions |
| a. Digestive system |
1. It helps in breathing and gaseous exchange. |
| b. Respiratory system |
2. It performs internal transportation of materials. |
| c. Circulatory system |
3. It performs the function of nutrition. |
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a - 3, b - 1, c - 2
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a - 3, b - 2, c - 1
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a - 1, b - 3, c - 2
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a - 1, b - 2, c - 3
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a - 2, b - 1, c - 3
A
Correct answer
Explanation
This is the correct option.
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Secretion
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Absorption
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Protection
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Diffusion
C
Correct answer
Explanation
The main function of stratified epithelial tissue is protection, as they have the ability to withstand wear and tear.
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regulating the metabolic activities
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giving mechanical strength
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storing compounds
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transporting organic compounds
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All of the above
A
Correct answer
Explanation
Phloem complex tissue is composed of sieve tubes, companion cells, phloem fibres and phloem parenchyma. Companion cells regulate the metabolic activities of the sieve tube elements.
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Because of enlargement of buccal cavity
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Because of secretion of glands
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Because of the overgrowth of larynx
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None of these
C
Correct answer
Explanation
At puberty, the voice box or larynx begins to grow. Sometimes, the muscles of the voice box overgrow and the voice becomes hoarse.
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Increase in weight
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Excessive calcium in the diet
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Elongation of long bones
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Stretching of muscles
C
Correct answer
Explanation
At puberty, the long bones, i.e. the bones of arms and the legs, elongate and make a person tall.
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spleen
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kidney
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heart
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liver
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-
A
Correct answer
Explanation
The spleen is the organ which stores blood. It is also called the graveyard of RBCs.
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Only P and Q
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Only P and R
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Only P and S
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Only Q and S
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Only R and S
B
Correct answer
Explanation
In chordates, notochord is present and pharynx is perforated by gill slits.
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Coelenterata
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Ctenophora
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Platyhelminthes
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Aschelminthes
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Mollusca
D
Correct answer
Explanation
Organisms of phylum Aschelminthes have bilaterally symmetrical body with false coelom.
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Iron supplementation
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Erythropoietin
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Vitamin E supplementation
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Decreased frequency of blood sampling
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Folate supplementation
A
Correct answer
Explanation
In preterm infants, Iron stores are low and exhausted quickly because of the infant's rapid growth rate. However routine administration of iron is controversial and not given in all units
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Angiotensin II
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Vasopressin
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Epinephrine
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Prostaglandins
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Non-steroidal anti-inflammatory drugs
D
Correct answer
Explanation
Prostaglandins are powerful vasodilators and there is a normal tonic level of vasodilation in the renal blood vessels, which is caused by the prostaglandins.