Human Reproduction

Identify A, B, C, D in parturition description (Parturition/Lactation, Oxytocin/Prolactin, Contraction/Relaxation, Birth canal/Cervix)

1. A-Parturition, B-Oxytocin, C-Contraction, D-Birth canal
2. A-Lactation, B-Oxytocin, C-Relaxation, D-Birth canal
3. A-Parturition, B-Oxytocin, C-Relaxation, D-Cervix
4. A-Parturition, B-Prolactin, C-Contraction, D-Vagina

Which gland secretes large amounts of prolactin in mother after parturition?

1. Hypothalamus
2. Anterior Pituitary
3. Posterior pituitary
4. Mammary glands

The milk produced during the initial few days of lactation is

1. Cortisone
2. Lactam
3. Colostrum
4. None of the above

Which of the following hormone decreases in blood at the time of parturition?

1. Estrogen
2. Relaxin
3. Progesterone
4. Oxytocin

The signals for parturition originate from

1. Fully developed fetus
2. Placenta
3. Both (A) & (B)
4. Placenta only

Identify A, B, C, D in foetal development diagram (Placental villi, Umbilical cord, Yolk sac, Plug of mucus in cervix)

1. A-Placental villi, B-Umbilical cord, C-Yolk sac, D-Plug of mucus in cervix
2. A-Placental villi, B-Yolk sac, C-Umbilical cord, D-Plug of mucus in cervix
3. A-Placental villi, B-Plug of mucus in cervix, C-Yolk sac, D-Umbilical cord
4. A-Umbilical cord, B-Placental villi, C-Yolk sac, D-Plug of mucus in cervix

Most of the major organ systems are formed in foetus

1. By sixth month
2. By third trimester
3. By first trimester
4. By second trimester

Umbilical cord has

1. 3 blood vessels
2. 2 umbilical arteries
3. 1 umbilical vein
4. All of the above

The embryonic germ layer to form first is

1. Endoderm
2. Ectoderm
3. Mesoderm
4. Epiblast

Antibody that can cross placenta is

1. IgM
2. IgD
3. IgA
4. IgG

Non identical twins are

1. Also called fraternal/dizygotic twins
2. Formed from fertilisation of two eggs with two sperms independently
3. May or may not be of same gender
4. All of the above

Trophoblast and Inner cell mass are characteristic of

1. Morula
2. Blastocyst
3. Gastrula
4. Zygote

Identify structure A,B,C,D in fertilisation diagram (Corona radiata, Zona pellucida, Perivitelline space, Sperm)

1. A-Corona radiata, B-Zona pellucida, C-Perivitelline space, D-Sperm
2. A-Zona pellucida, B-Corona radiata, C-Perivitelline space, D-Sperm
3. A-Zona pellucida, B-Corona radiata, C-Sperm, D-Perivitelline space
4. A-Corona radiata, B-Zona pellucida, C-Sperm, D-Perivitelline space

Which of the following is correct about fertilisation?

1. Secretions of acrosome help sperm enter cytoplasm of ovum; second meiotic division is unequal; haploid nuclei fuse to form diploid zygote
2. Acrosome secretions are not needed; second meiotic division is equal; haploid nuclei fuse
3. Acrosome secretions are not needed; second meiotic division is unequal; diploid nuclei fuse
4. Secretions of acrosome help sperm; second meiotic division is equal; haploid nuclei fuse

Fertilisation can only occur if

1. Ovum and sperms are transported simultaneously to the ampullary region
2. All copulations lead to fertilisation
3. Fertilisation can occur in any part of the fallopian tube
4. Capacitation is not required

Identify the correct option for the sperm structure diagram

1. A-Acrosome, B-Nucleus, C-Mitochondria, D-Tail
2. A-Nucleus, B-Acrosome, C-Mitochondria, D-Tail
3. A-Acrosome, B-Mitochondria, C-Nucleus, D-Tail
4. A-Mitochondria, B-Nucleus, C-Acrosome, D-Tail

Which of the following is incorrect about corpus luteum?

1. Corpus luteum is maintained throughout pregnancy
2. Progesterone levels remain high in pregnancy
3. Endometrium is maintained throughout pregnancy
4. LH maintains the corpus luteum throughout pregnancy

Which hormone stimulates follicular development in ovaries during follicular phase?

1. FSH
2. LH
3. Progesterone
4. Estrogen

Absence of menstruation could be due to

1. Pregnancy
2. Stress
3. Poor health
4. All of the above

Identify the correct sequence of the events of menstrual cycle

1. Follicular phase → Menstrual phase → Ovulation → Luteal phase
2. Menstrual phase → Ovulation → Follicular phase → Luteal phase
3. Menstrual phase → Follicular phase → Ovulation → Luteal phase
4. Menstrual phase → Luteal phase → Ovulation → Follicular phase

100 oogonia give rise to

1. 100 Secondary oocytes
2. 100 Ova
3. 100 Primary oocytes
4. All of the above

Find the odd one out with respect to ploidy of the cells

1. Primary Oocyte
2. Ovum
3. Secondary oocyte
4. Second polar body

Oogenesis is initiated

1. At puberty
2. At menarche
3. During childhood
4. During the embryonic development stage

Find out the correct statement with respect to human sperm

1. The neck is filled with enzymes that help in fertilisation of the ovum
2. The head of sperm contains a diploid nucleus
3. The middle piece possesses numerous mitochondria, which produce energy for the movement of sperm
4. Sperm shows ciliary movement

The spermatids are transformed into spermatozoa by the process called

1. Spermiation
2. Spermiogenesis
3. Azoospermia
4. Spermatocytogenesis

Surgical removal of breasts is called

1. Mastectomy
2. Hysterectomy
3. Orchidectomy
4. Both (B) & (C)

Select the correct statement about mammary glands

1. Estrogen and progesterone stimulate milk production in mammary glands
2. Lactiferous ducts open into the mammary ampulla
3. Glandular tissue of each breast comprises 15-20 mammary lobes
4. Ampulla are the milk secreting units in mammary glands

Match the following: Clitoris, Labia majora, Labia minora, Hymen

1. a-iii, b-iv, c-i, d-ii
2. a-iv, b-iii, c-i, d-ii
3. a-ii, b-iv, c-i, d-iii
4. a-i, b-iv, c-iii, d-ii

Which of the following is a finger like structure and lies at the upper junction of the two labia minora above the urethral opening?

1. Clitoris
2. Oviduct
3. Ampulla
4. Chorionic villi

Identify A, B, C and D in female reproductive diagram correctly

1. A-Ovary, B-Vagina, C-Infundibulum, D-Uterine fundus
2. A-Ovary, B-Vagina, C-Fimbriae, D-Uterine fundus
3. A-Ovary, B-Vagina, C-Fimbriae, D-Uterine cavity
4. A-Ovary, B-Cervix, C-Fimbriae, D-Uterine fundus

Fleshy folds of tissue which extend down from the mons pubis and surround the vaginal opening are

1. Mons pubis
2. Labia majora
3. Labia minora
4. Hymen

Which of the following is not a paired structure in female reproductive system?

1. Ovary
2. Oviduct
3. Mammary gland
4. Vagina

Identify the structure X (female reproductive system diagram)

1. Urinary Bladder
2. Rectum
3. Uterus
4. Vagina

Hormone not secreted by ovaries is

1. Progesterone
2. FSH
3. Estrogen
4. Inhibin

Surgical removal of uterus is called

1. Castration
2. Tubectomy
3. Vasectomy
4. Hysterectomy

Identify A, B, C and D in reproductive system diagram correctly

1. A-Ejaculatory Duct, B-Bulbourethral gland, C-Seminal Vesicle, D-Prostate
2. A-Ejaculatory Duct, B-Prostate, C-Bulbourethral gland, D-Seminal Vesicle
3. A-Ejaculatory Duct, B-Seminal Vesicle, C-Prostate, D-Bulbourethral gland
4. A-Ejaculatory Duct, B-Bulbourethral gland, C-Prostate, D-Seminal Vesicle

Which of the following is not a paired structure?

1. Seminal vesicle
2. Ejaculatory duct
3. Cowper's Gland
4. Prostate Gland

Identify the structure X (Interstitial cells in seminiferous tubule diagram)

1. Sertoli Cells
2. Spermatogonia
3. Interstitial Cells
4. Phagocytic cells

During cold temperature in the surroundings

1. Testes are moved closer to body
2. Testes are moved away from body
3. Testes remain unaffected
4. Testes stop producing sperms

In humans, the testes are situated outside the abdominal cavity within a pouch called

1. Scrotum
2. Epididymis
3. Inguinal canal
4. Genital pouch