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Life Cycle > Histology > Flashcards

Histology Flashcards

1
Q

What is the ejaculatory pathway of sperm?

A

SEVEN UP

  • Seminiferous tubules
  • Epididymus
  • Vas deferens
  • Ejaculatory duct
  • (Nothing)
  • Urethra
  • Penis
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2
Q

Compare the location of Leydig and Sertoli cells

A

Both are in seminiferous tubulues

  • Leydig cells are around the outside of the tubule
  • Sertoli cells are within the lumen of the tubule
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3
Q

Is there vasculature within the seminiferous tubulue or epidiymis? Why?

A

NO. There is a blood/testes barrier to prevent immune system from coming in contact with the developing sperm (which would look foreign)

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4
Q

Name the cell types throughout spermatogenesis and their number of chromatids

A
  1. Spermatagonia = 2C, diploid
  2. Primary spermatocyte = 4C, diploid
  3. Secondary spermatocyte = 2C, haploid
  4. Spermatid = 1C

*Gonna set your sights on my tits!

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5
Q

Name this structure. Which cells create it?

A

Sertoli cells (building a fence around the SAANA)

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6
Q

Name 5 functions of Sertoli cells

A

Picture the neighbor in his SAANA

  • Spermatogensis support
  • makes Androgen binding protein
  • makes Aromatase
  • makes iNhibin
  • makes Anti-Mullerian hormone
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7
Q

What is the function of Leydig cells?

A

Leydig cells make testosterone

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8
Q

Where can spermatagonia be found?

What is their function?

A
  • Spermatagonia line the seminiferous tubules
  • They are the germ cells (2C) that produce primary spermatocytes
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9
Q

Where do sperm gain motility?

A

Within the epididymus

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10
Q

Where do seminal vesicle contents combine with sperm?

A

Seminal vesicle contents combine with sperm in the ejaculatory duct

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11
Q

Through which erectile tissue does the male urethra pass?

A

Corpus spongiosum

(Semen passes through Spongiosum)

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12
Q

Name the four cell types during oogenesis and their chromosome/chromatid number

A
  • Oogonia (2C, diploid)
  • Primary oocytes (4C, diploid)
  • Secondary oocyte (2C, haploid)
  • Ovum (1C, haploid)
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13
Q

What cells make up the corpus luteum?

What does it produce?

A

Corpus luteum = Remnants of the ovarian follicle that remain in the ovary after ovulation (granulosa and theca cells)

Produces progesterone (and estradiol)

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14
Q

Compare the two parts of the endometrium

A
  • Endometrium basalis = Does not respond to hormone changes
  • Endometrium functionalis = Responds to hormone changes, is shed during menses
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15
Q

What type of cells line…

  • Vagina and ectocervix?
  • Endocervix and uterus?
  • Fallopian tube?
  • Serosal surface of ovary?
A
  • Vagina and ectocervix = stratified squamous epithelium
  • Endocervix and uterus = simple columnar epithelium
  • Fallopian tube = simple columnar epithelium with cilia
  • Serosal surface of ovary = simple cuboidal epithelium
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16
Q

What structure is this?

A

Seminiferous tubule

(you can see the developing sperm)

17
Q

Name A-E

A

A = spermatocyte

B = spermatid

C = Leydig cells

D = spermatogonia

E = Sertoli cells

18
Q

What male structure is this?

A

Epididymus

(See the elongated microvilli and surrounding myoepithelium)

19
Q

Name the vascular network that supplies this structure.

A

Pampiniform venous plexus

(this is the spermatic cord, with vas deferens in the left corner)

20
Q

Name this structure. What is indicated by the 3 numbers?

A

This is the vas deferens, with 1/2/3 showing the three layers of smooth muscle

21
Q

What is this structure?

A

Seminal vesicles

22
Q

What is this structure?

What is carried in ED?

A

This is the prostate.

ED (ejaculatory ducts) is carrying both sperm from testes and seminal fluid from seminal vesicles.

23
Q

Which reproductive gland is this?

A

Prostate

24
Q

What is L (be specific)?

Which cells make up CL?

A
  • L = ovarian ligament
  • CL = granulosa and theca cell remnants from a ruptured (ovulated) follicle
25
Q

Name a-d

A

A = Mesothelial layer of ovary

B = Tunica Albuginea

C = primordial follicle (with 4C primary oocytes)

D = primary follicle

26
Q
A

A = oocyte

B = zona pellucida

C, D = granulosa cells

E = theca cells

27
Q
A

A, C = granulosa cells

B = theca cells

D = zona pellucida

E = oocyte

F = corpus luteum

28
Q

Name the parts of the fallopian tube

A

Fimbriae -> Infundibulum -> Ampullae -> Isthmus

29
Q

Match the cross-sections with their corresponding region of fallopian tube

A

Top left = Portion within the uterus

Top right = infundibulum

Bottom = ampulla

30
Q

What is this?

A

Fallopian tube (further from uterus)

31
Q

Name the three parts seen in this structure

A

Uterus

  • Bottom = myometrium
  • Middle = Endometrium basalis
  • Top = Endometrium functionalis

Life Cycle (27 decks)

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