Human Reproduction - Spermatogenesis

Question 1

Spermatogenesis

Answer 1

Creation of sperm cells.

Question 2

Spermatogenesis Key Structures

Answer 2

Testes, Seminiferous tubules, Epididymis, Vas deferens.

Question 3

Spermatogenesis Temperature

Answer 3

Testes are outside the body for lower temperature.

Question 4

Seminiferous Tubules Structures

Answer 4

Leydig cells (outside), Sertoli cells (inside).

Question 5

Seminiferous Tubules Germ cells

Answer 5

Develop inwards through mitosis and meiosis.

Question 6

Growth and Maturation Stages

Answer 6

Spermatogonia (mitosis), Meiosis I (halving chromosomes), Meiosis II (separating chromatids).

Question 7

Growth and Maturation Mitosis

Answer 7

Maturation and growth of cell.

Question 8

Growth and Maturation Hormones

Answer 8

ICSH triggers testosterone for sperm production.

Question 9

Sperm Cell Structure : Acrosome

Answer 9

Contains enzymes for egg membrane penetration.

Question 10

Sperm Cell Structure: Nucleus

Answer 10

Holds genetic information (haploid).

Question 11

Sperm Cell Structure : Centrioles

Answer 11

Leftover from meiosis.

Question 12

Sperm Cell Structure : Mitochondria

Answer 12

Provide energy for movement.

Question 13

Sperm Cell Structure : Axial Filament (Tail)

Answer 13

Propels sperm in propeller-like motion.

Question 14

Terminology Recap : Puberty

Answer 14

Hormones ICSH and testosterone initiate spermatogenesis.

Question 15

Terminology Recap : Lydic & Sertoli Cells

Answer 15

Nurture developing sperm.

Question 16

Terminology Recap : Diploid vs. Haploid

Answer 16

Chromosome numbers during development.

Question 17

Terminology Recap : Spermatozoa

Answer 17

Formal term for sperm.

Question 18

Terminology Recap : Acrosome

Answer 18

Enzymes for egg penetration.