Placenta

Q.

Write the structure and function of placenta in a human female.

Q. What is placenta and what are its functions? [5 MARKS]

Q.

Describe the functions of

(a) amnion

(b) placenta

Q.

Structure connecting the foetus to the placenta is:

1. umbilical cord

2. chorion

3. yolk sac

4. amnion

Q. Which hormone is secreted by placenta and what is its functions

Q.

Name the organ which connects the placenta to the embryo.?

Q.

The sac-like structure present outside the body and which contains testes is called _________.

Q.

Which of the following is incorrect about the placenta?

1. The placenta is attached to the uterine wall

2. The umbilical cord connects the placenta with the foetus

3. The placenta does not produce endocrine hormones

4. The placenta is permeable to respiratory gases and nutrients

Q.

What is the role of placental barrier?

1. Prevents mix of fetal blood and waste materials

2. Prevents mix of fetal blood and chemicals

3. Prevents mix of fetal blood and mother's blood

4. Prevents mix of fetal blood and nutrients

Q. what is the importance of placenta in nourishing the embryo??

Q.

Umbilical cord in the growing foetus is connected to________.

1. uterus

2. placenta

3. cervix

4. ovary

Q.

The placenta is derived from

1. Trophoblastic cells of the embryo

2. Decidual tissue of the uterus.

3. Umbilical cord

4. Both A and B

Q.

State whether the following sentences are True(T) or False (F):

Uterus forms the placenta for the development of the fetus.

1. True
2. False

Q. is a specialised organ for exchange of nutrients between the maternal and the foetal blood.

1. Morula
2. Placenta
3. Zona pellucida
4. Vulva

Q.

Stalk with which ovules remain attached to the placenta is

1. Raphe

2. Chalaza

3. Funicle

4. Hilum

Q.

Can you please explain in detail the topic of placenta.

Q.

Which of the following cannot reach the foetus through the placenta?

1. HIV

2. Carbon dioxide gas

3. Germs

4. Vitamin C

Q. A baby is attached to the placenta through the .

1. blood vessel
2. capillaries
3. fallopian tube
4. umbilical cord

Q.

Placenta

1. Foetus is provided with mother's blood

2. Foetus receives nourishment from mother's blood

3. Foetus is covered by membranes

4. Foetus is attached to mother by umbilical cord

Q.

Match the following.

$\begin{array}{cc}\text{Column~I}& \text{Column~II}\\ \text{(i). hCG}& \text{a. Stimulates duct development in breasts.}\\ \text{(ii). hCS}& \text{b. Relaxes the pelvic ligaments and widens the cervix.}\\ \text{(iii). Relaxin}& \text{c. Continued production of progesterone by the luteal cells.}\\ \text{(iv). Estrogen}& \text{d. Increases the amount of glucose in the mother’s blood.}\end{array}$

1. i)➡ d , ii)➡ c, iii)➡ a, iv) ➡ b

2. i)➡ c, ii)➡ d, iii)➡ b, iv) ➡ a

3. i)➡ b, ii)➡ d, iii)➡ c, iv) ➡ a

4. i)➡ d, ii)➡ b, iii)➡ a, iv) ➡ c

Q. A baby is attached to the placenta through the .

1. blood vessal
2. capillaries
3. fallopian tube
4. umbilical cord

Q.

Type of placenta present in humans is:

1. Discoidal

2. Cotyledonary

3. Diffuse

4. Zonary