GAMETOGENESIS [EXAM LIKE QUESTIONS]

Seminiferous Tubules

Identify the whole structure presented in the image.

Lumen

What is the term used to describe the central, fluid-filled space within this structure where the process of spermatogenesis occurs in the male reproductive system?

Spermatogenesis

What do you call the process of producing the sperm?

Frog

The specimen shows the testis of what animal?

Mouse

The specimen shows the testis of what animal?

Spermatogonia

What is the cell stage at A

B

The stage after A is what letter?

Primary Spermatocyte

What cell stage is B at?

FALSE

TRUE OR FALSE

A is a haploid cell

TRUE

TRUE OR FALSE

B is a diploid cell

TRUE

TRUE OR FALSE

Sperm cell development starts from outermost going towards to innermost

Spermatid

What is the cell stage of C?

A

What is the letter of the stage after C?

Secondary spermatocyte

What is the stage before C?

Spermiogenesis

What is the term used to describe the final stage of sperm cell development, during which C undergoes significant structural and functional changes to become A?

Sertoli cells

What cellular structures provide physical and nutritional support to cells during spermatogenesis?

TRUE

TRUE OR FALSE

F is the first stage of maturation in the sperm

Spermatozoa

What is the cell stage of E?

Functional male gamete

What is the fate of A?

Endoderm

What is the origin germ layer of A?

Spermatid

What is the fate of B?

Endoderm

What is the origin germ layer of B?

Spermatozoa

What is the fate of C?

Endoderm

What is the origin germ layer of C?

Secondary Spermatocyte

What is the fate of D?

Endoderm

What is the origin germ layer of D?

Primary Spermatocyte

What is the fate of G?

Endoderm

What is the origin germ layer of G?

Primary follicle

Identify the whole structure presented in the image.

Follicle cells

What type of cells are surrounding the structure?

One

How many layer/s of follicle cells are present in this picture?

TRUE

TRUE OR FALSE

This is the earliest stage of ovarian follicle development.

Cat

What specimen is this?

Secondary Follicle

Identify the whole structure presented in the image.

Atresia or tertiary follicle

What is the fate of this structure?

Mesoderm

What is the germ layer origin of this structure?

Oocyte

What is structure A?

Zona Pellucida

What is the thick acidophilic-staining glycoprotein layer surrounding A that encloses the vitelline membrane?

Stratum Granulosa

What is the structure that surrounds A with multiple layers?

Corona Radiata

What is the fate of C?

Mesoderm

What is the origin germ layer of C?

Persists until Fertilization

What is the fate of B?

Endoderm

What is the origin germ layer of B?

Tertiary Follicle

Identify the encircled structure presented in the image.

Corpus luteum

What term describes the structure consisting of the remnants of the ruptured encircled structure after ovulation?

Ovulation

The secondary oocyte is usually located at the side of the encircled structure in preparation for which process?

Antrum

What is the fluid-filled cavity surrounding A?

Atresia or Ovulation

What is the fate of this structure?

Mesoderm

What is the origin germ layer of this structure?

Collapses during ovulation

What is the fate of the fluid-filled cavity surrounding A?

Mesoderm

What is the origin germ layer of B?

Corona Radiata

Identify the layer of cells in structure A directly adjacent or immediately surrounding the zona pellucida of a secondary oocyte

Cumulus Oophorus

Identify the thickened cluster of cells in structure B surrounding the oocyte.

Granulosa Cells

What type of cells comprise A and B?

TRUE

TRUE OR FALSE

"Structure B" facilitates the transport of the oocyte from the ovary to the fallopian tube after ovulation.

Theca cells

During this stage, what type of cells start to form around the follicle which plays a crucial role in the production of androgens and supporting the development of the growing follicle?

False

TRUE OR FALSE

The antrum is absent in this stage of oogenesis.

Theca Externa

Theca cell E is the outer layer made up of collagen fibers

Theca Interna

Theca cell D is the inner layer secreting androgens

Degenerates after ovulation

What is the fate of theca cells?

Mesoderm

What are the origin germ layers of theca cells?

ovulated together with oocyte

What is the fate of structure A and B?

Mesoderm

What is the origin germ layer of structure A and B?

Primordial Follicles

Structure D contains the primary oocyte surrounded by a thin layer of squamous follicle (granulosa) cells and an extemal basal lamina

Tunica Albuginea

What is the thin, fibrous connective tissue capsule located directly beneath structure D?

Mesoderm

What is the germ layer origin of structure D?

Frog

What ovary specimen is this?

C

What letter is the food source of the embryo?

Cytoplasm

What is the fate of structure C?

Endoderm

What is the germ origin layer of structure C?

Germinal Vesicle

What is the structure that C is surrounding?

Nucleus

What is the fate of the structure that C is surrounding?

Endoderm

What is the germ origin layer of the structure that C is surrounding?

Vitelline Membrane

What is the dark thin line surrounding the plasma membrane?

Egg Membrane

What is the fate of structure F?

Endoderm

What is the germ origin layer of structure F?

Follicle cells

What do you call the cluster of spherical cells that help with the egg’s maturation inside the structure?

Degenerates after ovulation

What is the fate of the cluster of spherical cells?

Mesoderm

What is the germ origin layer of structure D?

Primary Oocyte

What is the large cell surrounded by follicle cells with small centrally located nucleus?

Secondary Oocyte or Ovum

What is the fate of the primary oocyte?

Endoderm

What is the germ origin layer of the primary oocyte?