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Unit II Anatomy > Other > Flashcards

Other Flashcards

1
Q

Gubernaculum (male)

A
  • fibrous tract
  • pulls testes of fetus down through inguinal canal/deep inguinal ring
  • degenerates at birth
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2
Q

Processus vaginalis (male)

A
  • pocket/diverticulum
  • creates pathway for descending testes (snowplow in front of the car)
  • degenerates at birth and becomes tunica vaginalis
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3
Q

External Spermatic fascia derived from ________

A

external oblique muscles

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4
Q

Cremasteric fascia derived from ________

A

internal oblique muscles

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5
Q

Internal spermatic fascia derived from ________

A

transversalis fascia

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6
Q

Median umbilical fold contains ________

A

obliterated urachus (left over from embryonic development)

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7
Q

Medial umbilical fold contains _______

A
  • non-patent umbilical arteries left over from fetal development
  • bilateral structure
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8
Q

Lateral umbilical fold contains ________

A
  • inferior epigastric artery and vein

- bilateral structure

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9
Q

Retroperitoneal Organ Structures

A 
S uprarenal gland
A orta/IVC
D uodenum (2nd and 3rd parts only)
P ancreas (except tail)
U reters
C olon (ascending and descending)
K idneys
R ectum
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10
Q

Viscera derived from embryonic foregut (9)

A
  • Lungs
  • Trachea
  • Esophagus
  • Stomach
  • Upper Duadenum (1+2)
  • Liver
  • Gallbladder/Bile duct
  • Pancreas
  • Spleen
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11
Q

Viscera derived from embryonic midgut (7)

A
  • lower duodenum (2,3,4)
  • Jejunum
  • Ileum
  • Cecum
  • Appendix
  • Ascending Colon
  • Transverse colon (proximal 2/3)
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12
Q

Viscera derived from embryonic hindgut (6)

A
  • Transverse colon (distal 1/3)
  • Descending colon
  • Sigmoid colon
  • Rectum
  • Upper anal canal
  • Urogenital Sinus
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13
Q

Obliterated Umbilical artery is covered by the _______ fold

A

medial umbilical fold

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14
Q

Urogenital Folds develop into _______ (male) and _______ (female)

A

Shaft of penis

Labia Minora

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15
Q

Labioscrotal folds develop into _______ (male) and _______ (female)

A

Scrotum

Labia Majora

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16
Q

Urethral Plate develop into _______ (male) and _______ (female)

A

Penile urethra

Vestibule

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17
Q

Genital Tubercle develop into _______ (male) and _______ (female)

A

Glans penis

Glans clitoris

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18
Q

Urogenital Ridge –> _______, _________, ________

A

pronephros
mesonephros
metanephros

19
Q

Pronephros

A

3rd week, cervical region, non-functional

20
Q

Mesonephros

A

4th-10th week, Thoracic and Lumbar region, functional, temporary

21
Q

Metanephros

A

permanent, functional, pelvic region

5th week begin to develop, functional by week 10

22
Q

Mesonephric duct

A
  • drain urine into developing bladder

- In males, develops into epididymus and vas deferens (when it connects to seminiferous tubules)

23
Q

Metanephric Blastema

A

–> nephrons

24
Q

Embryo is bipotential/ambisexual until week _____

A

6

25
Q

Cord Cells develop into _______ (male) and _______ (female)

A

Sertoli cells

Follicular cells

26
Q

Mesenchyme cells develop into _______ (male) and _______ (female)

A

Leydig cells

Stromal cells

27
Q

Mullerian ducts: cranial –> _________ and caudal –> ___________

A 
cranial = do not fuse, fallopian tubes
caudal = fuse, uterus, and then vagina
28
Q

Cranial fold creates __________ and __________

A

pericardioperitoneal canal and primitive pericardial cavity

29
Q

Primitive pericardial cavity becomes __________ and ________ with ___________ folds

A

Pericardial cavity and Pleural cavity

Pleuropericardial folds

30
Q

Pericardioperitoneal canals close with ____________

A

Pleuropericardial folds

31
Q

Diaphragm developed from:

A 
Septum transversum
Pleuroperitoneal membrane
Dorsal mesentary of esophagus
Body wall mesoderm
Somites from paraxial mesoderm (C3-C5)
32
Q

Vasculogenic cell clusters –> __________

A

endocardial tube

33
Q

Endocardial tubes (R/L) fuse to form ____________

A

primitive heart tube

34
Q

Ductus Arteriosus

A

bypass pulmonary circulation

–> Ligamentum Arteriosum

35
Q

Foramen Ovale

A

bypass pulmonary circulation

–> Fossa Ovalis

36
Q

Ductus Venosus

A

bypass hepatic portal system

–> Ligamentum venosum

37
Q

Umbilical vein

A

deliver O2 blood from placenta to fetus

–> Round Ligament (ligamentum teres)

38
Q

Umbilical arteries

A

deliver blood from fetus to placenta

–> Medial Ligaments

39
Q

Lung bud is derived from

A

ventral outpocketing of FOREGUT

40
Q

__________ separates the esophagus from the lung bud/trachea

A

tracheoesophageal ridge/septum

41
Q

Pseudoglandular stage

A

developing lung tissue resembles glands

42
Q

Canalicular stage

A

terminal sacs start to form but no enough or mature enough for gas exchange

43
Q

Terminal sac stage

A

increased number of terminal sacs and alveoli that can perform gas exchange

44
Q

Alveolar stage

A

drastic increase in alveoli

Unit II Anatomy (6 decks)

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