VERTEBRATE DISSECTION

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VERTEBRATE DISSECTION

• LAB 13
• Rat Internal Anatomy -
• Excretory, Reproductive, Endocrine Nervous
  Systems

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Review Protocols for preserved animals

• View rats of all sizes, sexes and reproductive
  states!

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Excretory System

• Fx
• excrete waste from the body
• maintain homeostasis with regard to water, pH,
  salts

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Excretory System -KIDNEY

• Hilus (point of entry of blood vessels and
  ureter)
• Glomeruli
• Renal pelvis
• Renal medulla
• Renal cortex

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Reproductive System

• Fx
• produce gametes
• achieve syngamy with a conspecific
• site for embryonic development

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Reproductive System -FEMALE

• Ovary R L
• Oviduct/Fallopian tubes R L
• Horn of Uterus R L
• Body of Uterus
• Cervix
• Vaginal Tract
• Clitoris (homologous to penis)

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Image taken from http//trc.ucdavis.edu/mjguinan/a
pc100/modules/Reproductive/mammal/femalesys0/femal
esys9.html
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Reproductive System -MALE

• Scrotum
• Testes R L
• Epididymis R L
• Spermatic cord R L, includes Vas
  deferens/sperm duct
• Urethra
• Penis (Baculum, Prepuce, Glans)
• Accessory glands (prostate and vesicular/seminal
  vesicles)

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Endocrine System

• Fx produce hormones coordinate functions of
  body
• Partial list
• Throat area Thymus, Parotid, Sublingual-Mandibula
  r (salivary), Lacrimal
• Other Pancreas, Testes, Ovaries

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Nervous System

• Fx receive and conduct impulses, store
  information, center for learning
• Parts
• Central Nervous System
• Brain
• Spinal Cord
• Peripheral Nervous System
• Sensory Motor Nerves of head and body