Physiology MCQs - Endocrinology - Multiple Choice Questions

# If a chemical agent is produced by a cell and if the agent acts on the same cell, the effect is termed as:
A. Endocrine effect
B. Paracrine effect
C. Autocrine effect
D. None of the above

# All of the following are autocoids except:
A. Histamine
B. Eicosanoids
C. Serotonin
D. Insulin

# The following is believed to be a second hormonal messenger in many tissues.
A. Cyclic AMP
B. Prostaglandins
C. Calcium ions
D. Adenyl cyclase

# Drug receptors for steroids are present in the:
A. Nuclear chromatin
B. Cell membrane
C. Cytoplasm
D. Nucleus

Highest number of death due to Corona Virus Infection (COVID-19)

# Most deaths due to COVID-19, an infection due to novel coronavirus has occurred till date (23rd March) in which country?
A. Russia
B. China
C. Italy
D. USA

The correct answer is C. Italy.

No. of Deaths till Date.

Italy  - 5476
China - 3270
Russia - 1
USA -  458

Most Common Neurotransmitter:

# Most common neurotransmitter is:
A. Dopamine
B. GABA
C. Acetylcholine
D. Norepinephrine

The correct answer is : C. Acetylcholine

Types of Cartilage

Hyaline Cartilage	Matrix consists of lacunar capsule containing individual chondrocytes. Widely distributed in the body. Surface covered by perichondrium. Type II collagen is found	Costal cartilage Articular cartilages of most synovial joints Thyroid, cricoid and arytenoid cartilages, pharyngeal cartilages, parts of nasal septum, epiphyseal plate essential for bone growth
Fibrous Cartilage	Also called white cartilage. Type I collagen is found. Perichondrium is absent. Highest tensile force. Calcification may occur with age.	It is found in symphysis, Intervertebral discs, public symphysis, articular disc of most of the joints and menisci of knee joint.
Elastic Cartilage	Yellow cartilage. This is similar to hyaline cartilage except that elastic fibres are present instead of type II collagen fibres. Calcification does not occur.	It is found in auricle. Wall of the medial part of the auditory tube. Epiglottis, corniculate, cuneiform and apical part of the arytenoids cartilages of larynx.