Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Melatonin is secreted from
Anonymous Quiz
7%
chromaffin cells
0%
astroglia cells
5%
corticotrophs
89%
pinealocytes
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Pinealocytes
Anonymous Quiz
0%
secrete melatonin only
0%
secrete serotonin only
5%
appear as brain sand
95%
secrete melatonin and serotonin
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (ABDO FARGHLY)
6. The most powerful mechanical force in the body caused by myofibroblasts is:
Anonymous Quiz
11%
a) Granulation tissue
83%
b) Wound contraction
0%
c) Wound dehiscence
6%
d) Type IV cartilage
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
The following occurs during spermiogenesis
Anonymous Quiz
88%
The anterior 2/3 of the sperm nucleus is covered by the acrosome
0%
Hydrolytic enzymes are formed in sER
0%
Mitochondria are not apparent in the sperm cell during this process
13%
The formed residual bodies are phagocytosed by macrophages
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (Abdulrahman bin Hasan)
The mediastinum testis is the posterior thickening of
Anonymous Quiz
0%
Tunica vasculosa
6%
Scrotum
91%
Tunica albuginea
3%
Tunica vaginalis.
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (Abdulrahman bin Hasan)
The testis is a
Anonymous Quiz
76%
Compound tubular gland
6%
Simple branched tubular gland
15%
Compound tubuloalveolar gland
3%
Simple coiled tubular gland
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (Abdulrahman bin Hasan)
Spermatogonia are characterized by
Anonymous Quiz
3%
Containing the haploid number of chromosomes
9%
Lying in the luminal compartment of the seminiferous tubules.
81%
Being of three types
6%
Lying in one layer only
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
During the Golgi phase of spermiogenesis
Anonymous Quiz
3%
Mitochondria aggregate below the neck
16%
Acrosomal cap spreads to cover the anterior 2/3 of nucleus
81%
Two centrioles migrate to the opposite pole of the spermatid
0%
Excess cytoplasm is pinched off
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Spermiogenesis is the process by which
Anonymous Quiz
19%
Spermatogonia differentiate into spermatids
78%
Spermatids change into spermatozoa by metamorphosis
3%
Spermatogonia migrate to the primitive male gonads
0%
Spermatozoa are propelled towards the duct system.
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
The following characterizes acrosomal phase of spermiogenesis
Anonymous Quiz
0%
Migration of two centrioles
9%
Pinching off excess cytoplasm
13%
Acrosomal vesicle covers anterior 1/3 of nucleus.
78%
Mitochondria are arranged to form the middle piece segment.
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
During the Golgi phase of spermiogenesis:
Anonymous Quiz
7%
Mitochondria aggregate below the neck
10%
Acrosomal cap spreads to cover the anterior 2/3 of nucleus.
83%
Two centrioles migrate to the opposite pole of the spermatid.
0%
Excess cytoplasm is pinched off
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Spermatogenic cell having haploid number of chromosome is the
Anonymous Quiz
94%
Secondary spermatocyte
3%
Primary spermatocyte
3%
Dark type A spermatogonia
0%
Type B spermatogonia
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
The following hormone suppresses spermatogenesis:
Anonymous Quiz
94%
Inhibin
0%
Testosterone
6%
Anti-Mullerian hormone
0%
FSH
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
Forwarded from Study Partner 196👨🏻⚕️👩🏻⚕️ (. .)
The following characterizes androgen binding protein of the testis
Anonymous Quiz
16%
It is produced by Leydig cells
3%
It is produced under the control of LH of anterior pituitary.
82%
It accumulates testosterone inside the seminiferous tubule.
0%
It is secreted in the pre-pubertal testis.