Medical Science Mcqs 5254 MCQs [All-Courses]

Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

Skeletal muscles______________?

A Contracts when calcium is taken up by sarcoplasmic reticulum

B Contracts when actin and myosin filaments shorten

C Contraction is initiated by calcium binding to troponin

D Contraction is initiated by calcium binding to tropomyosin

Review Detailed Answer

Correct Answer: Contraction is initiated by calcium binding to troponin

The contractile element in a skeletal muscle is present in______________?

A Sarcolemma

B Sarcoplasm

C Myofibril

D Endomysium

Review Detailed Answer

Correct Answer: Myofibril

Which is caused by acetylcholine through nicotinic receptors_____________?

A Contraction of skeletal muscle

B Decrease of heart rate

C Secretion of saliva

D Contraction of pupils

Review Detailed Answer

Correct Answer: Contraction of skeletal muscle

Which one of the following is a regulatory protein of the muscle ?

A Troponin

B Myosin

C Actin

D Protein- C

Review Detailed Answer

Correct Answer: Troponin

Skeletal muscles_____________?

A Contracts when calcium is taken up by sarcoplasmic reticulum

B Contracts when actin and myosin filaments shorten

C Contraction is initiated by calcium binding to troponin

D Contraction is initiated by calcium binding to tropomyosin

Review Detailed Answer

Correct Answer: Contraction is initiated by calcium binding to troponin

Cardiac muscle contracts due to______________?

A Extracellular Ca+2

B Sarcoplasmic ca+2

C Extracellular Na+

D Intracellular Na+

Review Detailed Answer

Correct Answer: Extracellular Ca+2

Which hormone does not have corresponding release hormone produced in pituitary ?

A TSH

B Prolactin

C ACTH

D FSH

Review Detailed Answer

Correct Answer: Prolactin

Thyroxine causes all the following except______________?

A Decreased cell metabolism

B Increased oxygen consumption

C Increased pulmonary ventilation

D Increased basal metabolism

Review Detailed Answer

Correct Answer: Decreased cell metabolism

Which of the following hormones increase the sensitivity of heart to epinephrine________________?

A Parathyroid

B Insulin

C Thyroid

D Glucagon

Review Detailed Answer

Correct Answer: Thyroid

Which of the following is called hunger hormone______________?

A Epinephrine

B Glucagon

C Pituitary

D Thyroxine

Review Detailed Answer

Correct Answer: Glucagon

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

Skeletal muscles______________?

The contractile element in a skeletal muscle is present in______________?

Which is caused by acetylcholine through nicotinic receptors_____________?

Which one of the following is a regulatory protein of the muscle ?

Skeletal muscles_____________?

Cardiac muscle contracts due to______________?

Which hormone does not have corresponding release hormone produced in pituitary ?

Thyroxine causes all the following except______________?

Which of the following hormones increase the sensitivity of heart to epinephrine________________?

Which of the following is called hunger hormone______________?