causes uterine contractions during childbirth and allows milk to be released during nursing.
Anonymous Quiz
76%
Oxytocin
20%
Prolactin
2%
GH
2%
TSH
Forwarded from حسين رحيم
Which primary germ layer is not correctly matched to an organ system or organ that develops from it
Anonymous Quiz
61%
Endoderm-cardiovascular system
14%
Mesoderm-skeletal system
11%
Ectoderm-nervous system
13%
Endoderm-lining of the digestive tract
Forwarded from حسين رحيم
Derivatives of mesodermal germ cell
Anonymous Quiz
10%
Enamel of the teeth
22%
The mammary glands
32%
The parenchyma of the thyroid,parathyroid ,liver,and pancreas
36%
The epithelium lining of the urinary bladder and urethra
Forwarded from حسين رحيم
Forwarded from حسين رحيم
Which of the following structure does not belong to its corresponding germ layer
Anonymous Quiz
11%
The epidermis….ectoderm
19%
The gut…the mesoderm and endoderm
21%
The gonad….the mesoderm
48%
The blood vessels….the endoderm
Forwarded from حسين رحيم
Regarding the identical twins choose false sentence
Anonymous Quiz
8%
The twins have strong resemblance in blood group,fingerprints,sex ,and external appearances
16%
They result from splitting of zygote at two-cell stage ,blastocyst stage ,bilaminar germ disc stage
16%
The have single placenta and a common chronic and amniotic sac
59%
Develop from a two fertilized ova
Forwarded from حسين رحيم
Which of the following is not derived from the endoderm
Anonymous Quiz
3%
Epithelial lining of digestive tract
18%
Epithelial lining of respiratory tract
17%
Glands of digestive tract
13%
Lining of urinary bladder
49%
Urinary system
❤1
Forwarded from حسين رحيم
The following is derived from mesoderm except
Anonymous Quiz
8%
Skeletal musculature
20%
Musculature of blood vessels
17%
cardiac musculature
27%
Supra renal medulla
27%
Supra renal cortex
Forwarded from حسين رحيم
Which of following is derived from endoderm
Anonymous Quiz
22%
Acinar cells of mammary gland
13%
Melanocytes
16%
Epithelial lining of lower anal canal
33%
Epithelial lining of female urethra
15%
Dermis of skin
Forwarded from حسين رحيم
Which primary germ layer is not correctly matched to an organ system or organ that develops from it
Anonymous Quiz
18%
Neuroectoderm -iris
7%
Endoderm -lining of digestive tract
34%
Mesoderm-dilator papillae
16%
Neural crest -pia and arachnoid
25%
Ectoderm-acinar cells of mammary glands
Forwarded from حسين رحيم
All these organs are formed from endoderm exept
Anonymous Quiz
17%
Lung
29%
Bladder
35%
Kidney
19%
Pancreas
Forwarded from حسين رحيم
The period from the third to the eighth weeks:
Anonymous Quiz
30%
Fetal period or organogenesis
20%
gastrulation
49%
embryonic period-organogenesis
Forwarded from حسين رحيم
All of this Derivatives of Ectoderm except
Anonymous Quiz
10%
Epidermis skin cell
50%
Thyroid cell
11%
Pigment cells
30%
Neurons of brain
Forwarded from حسين رحيم
Neuroectoderm form glial cells except
Anonymous Quiz
10%
astrocytes
4%
oligodendrocytes
23%
ependymocytes
63%
schwann cells
Forwarded from حسين رحيم
Because of its great importance, the ….. is sometimes considered a fourth germ layer
Anonymous Quiz
18%
Neuroectoderm
49%
Neural crest
15%
Neural Tube
19%
None of above
Forwarded from حسين رحيم
Example Neural Tube Defects (NTDs) is
Anonymous Quiz
9%
sirenomelia
11%
Situs inversus
63%
Spina bifida
17%
sacrococcygeal teratoma
Forwarded from حسين رحيم
….. reduces the incidence of NTDs by as much as 70%
Anonymous Quiz
79%
folic acid (Vitamin B9 )
6%
Riboflavin (vitamin B2)
11%
Thiamine (vitamin B1)
4%
Niacin (nicotinic acid)
Forwarded from حسين رحيم
Which of these is mismatched?
Anonymous Quiz
3%
The chorda-mesoderm develops into the notochord
11%
The intermediate mesoderm develops into kidneys and gonads.
11%
paraxial mesoderm develops into cartilage, skeletal muscle, and dermis
7%
The lateral plate mesoderm develops into the circulatory system,wall of gut ,wall of the human body
68%
All of these are correct
❤1
Forwarded from حسين رحيم
Forwarded from حسين رحيم
Which of the following is the correct sequence of events during neurulation
Anonymous Quiz
35%
Neural groove formation ➡️neural fold fusion ➡️neural plate formation
53%
Neural plate formation ➡️neural groove formation ➡️neural fold fusion
12%
Neural fold fusion ➡️neural plate formation ➡️neural groove formation