Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy part 2 > Reproductive system male, lecture > Flashcards

Reproductive system male, lecture Flashcards

1
Q

Sperm + ovum =

A

Zygote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the process of creating games in males and females called?

A

Spermatogenesis

Oogenesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Some general functions of the reproductive system

A

Produces and transports gametes
Maintain developing fetus
Produce sex hormones
Maintain gamets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How many chromosomes in a haploid cell?

Somatic?

A

23

46

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which stage of meiosis replicates chromosomes?

A

Interphase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Prophase 1

A

DNA condenses
Nuclear envelope disappears
spindles start to form
Crossing over

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the visable chromosomes called?

A

Tetrads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What chromosomes are involved in crossing over? What is the purpose of this process?

A

Maternal and paternal

Genetic shuffling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In which phases of cell division does genetic recombination take place?

A

Prophase 1 and Metaphase 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Metaphase 1

A

Chromosomes line up on equator and spindles are formed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Anaphase 1

A

Homologous pairs separate and move to opposite poles

Cleavage furrow starts to form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Telophase 1 and cytokenesis

A

cleavage furrow is complete,

2 daughter cells result that are haploid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the result of meiosis 2?
What is another name for meiosis 2?
Meiosis 1?

A

4 gametes with 23 chromosomes

Equatorial division

Reduction and division

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the product of oogenesis?

Why

A

1 viable ovum and 3 polar bodies

Because there is an uneven split in cytokenesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Primary sex organ of males and its function?

A

Testes - produces sperm and hormones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What and where do the testes originate from?
When do they move into the scrotum? And why?

How do the testes move into the scrotum?

A

Retroperitoneal masses of tissues near kidneys

7-8 months of gestation, the descent is stimulated by testosterone

The gubernaculum pulls the testes, vas deferens, and blood vessels through the Inguinal canal into the scrotum

17
Q

What makes of part of the spermatic cord during development?

A

The vas deferens and blood vessels

18
Q

What is the basic structure of the testes?

What cells compose the working elements of testes?
What is the basic function of these cells?

A

Divided into lobules
Has 2 tunics

Tunica Vaginalis
Tunica Albuginea

Seminiferous tubules - production of sperm
interstitial cells of leydig - production of male sex hormones

19
Q

Which cells produce make sex hormones?

A

Interstiatial cells of leydig

20
Q

What creates the epididymis? What is its function?

A

United seminiferous tubules

Sperm matures there

21
Q

In the seminiferous tubules, which cells create sperm?

Which cells are for nutrients?

A

Spermatogenic cells

Sustentacular cells (sertoli)

22
Q

What is the function of the germinal cells in the testes?

What is another term for the germinal cells in males?

A

They can do mitotic division to make more germinal cells or they can start the meiotic process

Spermatogonia cells

23
Q

Are the germinal/spermatogonia cells N or 2N

Where are they located?

A

2N

In the seminiferous tubules

24
Q

How many chromosomes in the Primary Spermatocyte?

Secondary?

What Type of division is each in?

A

Primary - 46 chromosomes - Meiosis 1

Secondary - 23 chromosomes - Meiosis 2

25
Q

Describe the structure and traits of sperm

A

Head - containing 23 chromosomes and Acrosome (enzymes to penetrate oocyte)

Body- mitochondria to produce ATP for energy

Flagellum - tail for locomotion

26
Q

What is the Vas deferens? Where is it located? What does it fuse to?

A

Tube that sperm travel through

Muscular tube that goes from the testes through the inguinal canal into the abdominal cavity

Fuses with the seminal vesicle to form the ejaculatory duct

27
Q

Vas Deferens + seminal vesicle =

A

ejaculatory duct

28
Q

What is the purpose of the seminal vesicles? Were is it located?

A

Secretes Alkaline fluid that is rich in nutrients (fructose for energy)

Attached to Vas Deferens

29
Q

Where is the prostate gland?

What is its function?

A

Surrounds the urethra below the bladder

Secretes milk alkaline fluid that enhances sperm motility

30
Q

Why does the sperm need to be in an alkaline fluid

“?

A

Because the vagina is acidic and it would kill it otherwise

31
Q

What produces lubricant for the penis?

Where is it located?

A

The bulbourethral gland

Two exocrine structures beneath the prostate

32
Q

What is semen? Where does each component come from?

A

Sperm cells - testes
Alkaline fluids - prostate
Fructose - Seminal vesicles
Lubricant - Bulbourethral

33
Q

What elevates the scrotum during arousal and exposure to cold?

A

Cremaster muscle

34
Q

What is the male excitatory organ?

What tissues make it up?

A

Penis

Corpus cavernosum
Corpus spongiosum

35
Q

What does the corpus spogiosum create?

What surrounds the erectile tissue?

A

The glans penis at the distal end
The bulb of the penis at the proximal end

Tunica Albuginea

36
Q

What is the name of the skin that is removed during circumcision

A

The prepuce

37
Q

What is Emission?

What is ejaculation? what is compressed?

A

Movement of semen from epididymus into urethra

Forceful movement of semen from urethra to outside
crura and bulbs

38
Q

Describe the FSH and LH cycle for men and what it does?

A

Hypothalamus releases gonadatropin releasing hormone (GnRH)

GnRH goes down the Hypophyseal portal system to the Ant. Pituitary

GnRH binds to gonadotropic cells releasing LH and FSH into the blood stream

LH and FSH travel through the blood stream until they reach their target cells

LH interactis with the interstital cells in the seminiferous tubules to produce testosterone

FSH interacts with the spermatgenic cells in the testes to create sperm

39
Q

What is the negative feedback loop for FSH and LH?

A

Testes produce Inhibin as testosterone increases, this acts as a regulator for the hypothalamus

Anatomy part 2 (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions