Session 5: The Human Body BIOLOGY EOC REVIEW Created by: Sandra Spencer (April, 2013) All images are Microsoft Clipart used with permission from Microsoft, Inc, unless otherwise noted.

THIS IS YOUR BRAIN… Cerebrum Cerebellum Brain Stem Diencephalon Session 5 Public Domain Image (CC0)

THIS IS YOUR BRAIN… Cerebrum Session 5 Intelligence, Language, Personality, Sensation, & Motor Public Domain Image (CC0)

THIS IS YOUR BRAIN… Cerebellum Session 5 Coordination, Balance Public Domain Image (CC0)

THIS IS YOUR BRAIN… Brain Stem Session 5 Heart rate, Breathing, Reflexes Public Domain Image (CC0)

THIS IS YOUR BRAIN… Diencephalon Session 5 Emotions, Memories, Relay Station Public Domain Image (CC0)

THE BIRDS & THE BEES TALK Session 5  Sexual Reproduction – Two parent organisms combine genetic information to form a genetically different offspring  Females produce eggs and males produce sperm

FEMALE REPRODUCTIVE SYSTEM Session 5 Ovary – produce eggs Fallopian tubes – deliver eggs to uterus; where fertilization occurs Uterus – houses/develops baby Vagina – birth canal Public Domain Image (CC0)

MALE REPRODUCTIVE SYSTEM Session 5 Vas Deferens– delivers sperm to urethra Urethra– delivers sperm/urine out of body Epididymis– Stores/matures sperm Teste– produce sperm bladder Public Domain Image (CC0)

FERTILIZATION Session 5 Joining of the genetic material from a sperm and egg. Public Domain Image (CC0)

FETAL DEVELOPMENT Session 5 First Trimester – heartbeat, nervous system, limb buds with fingers & toes, nose/ears/eyes noticeable Second Trimester - fine hair, vernix caseosa, gender can be distinguished, organs functioning (except lungs), movement Third Trimester - eyes open, fatten up, less movement, head down, lungs mature 12 weeks Public Domain Image (CC0) Used with permission from Pearson

BLOOD Session 5 Plasma – water, lipids, proteins, hormones Leukocytes (white blood cells) – immune system Platelets – clotting Erythrocytes (red blood cells) – transport O2 and CO2 Public Domain Image (CC0)

FACTORS AFFECTING BLOOD FLOW Session 5  Temperature  Stress (blood pressure)  Genetics  Disease  Obesity  Clots

FIGHTING ILLNESS Session 5 Leukocytes & the Immune System 2 responses: 1.Specific– direct; targeted; go after a specific pathogen; lag time (vaccines & antibiotics) 2.Nonspecific – general; inflammation; immediate

FIGHTING ILLNESS: BACTERIA VS. VIRUSES Session 5  Bacteria – are LIVING and can be killed (antibiotics)  Viruses – are NONliving and canNOT be killed (can only treat symptoms and try to prevent infection) Public Domain Image (CC0)

KEEP YOURSELF HEALTHY Session 5 Vaccines: train immune system to recognize viruses quickly Wash hands! Cover the cough! Finish the antibiotics – helps prevent bacteria from developing resistance to medications Wash hands!