Pig Part E (Excretory and Reproductive Systems) Flashcards
What is the function of the excretory (urinary) system?
Remove waste (excess water, carbon dioxide, proteins sugars) from the body
Kidney
Removes waste products from the blood; maintains blood pH, regulates the amount of water in the blood.
Ureter
Tube that carries urine from kidney to bladder
Bladder
Stores urine
Urethra
Tube that carries urine from bladder to outside of body
The kidneys filter all of the blood in the body every ___ minutes
45
A person can live without one of their kidneys. True or false?
True
Define puberty
Period of time where adolescents reach sexual maturity and are capable of reproduction
Approximately what age does puberty occur?
Female: 10-14 years of age
Male: 12-16 years of age
What is the primary function of the male reproductive system?
Produce sperm (and testosterone for the male secondary sex characteristics)
Scrotum
An external sac that hold the testes at a couple of degrees cooler than the human body
Seminiferous tubules
Hundreds of tiny tubes where the sperm are produced (meiosis; spermatogenesis)
Epididymis
Where the sperm mature and are stored before ejaculation
What is the primary reproductive organ in a female?
Ovary
What are the primary functions of the female reproductive system?
Produce mature eggs every 28 days and prepare the body for pregnancy
A female is born with all of the eggs she will ever have. About how many eggs are usually released in her lifetime?
400
Define ovulation
The process in which an egg or eggs are released from one or both ovaries.
Fallopian tubes
Have cilia (hairs) that “sweep” egg into the uterus and there the sperm find the egg for conception
Uterus
Where the fertilized egg implants and grows and develops for 40 weeks (9 ½ months)
Placenta
Develops in uterus during pregnancy. Allows for mom’s blood vessels and fetal blood vessels to be close together for transfer of carbon dioxide and oxygen, nutrients and waste between mother and baby
