JUST VOCAB

MAMMALSChapters 45

Membrane that surrounds the embryo and the fluid in which it floats ______________________

A structure that is present because

it is found in ancestor organisms,

but it is functionless and no longer used _______________

(Ex: human appendix is a vestigial cecum)

Muscular female reproductive

organ where the embryo attaches __________________

and grows

amnion

vestigial

uterus

Tiny air sac that increases surface area

in the lungs ____________________

Mammals that have hooves _______________________

Dividing wall that separates the __________________

ventricle into 2 chambers

Mammals that lay eggs _______________________

alveoli

ungulates

septum

monotremes

Type of reproduction in which no shell surrounds the embryo and it grows insidethe mother receiving nourishment and oxygenthrough the placenta ____________________ Large breastbone where the

pectoralis muscle attaches ____________________

Mammals that have premature babiesWhich they carry in a pouch until

they mature __________________

Middle section of small intestine ___________________________

viviparity

sternum

marsupials

jejunum

Endocrine gland that regulates

heart rate, blood pressure, &

metabolism ____________________

Tubules that carry urine from thekidney to the urinary bladder ____________________

Small tubules that carry sperm from __________________

the epididymis to the urethra

Tubule that carries urine (and sperm in males)

From urinary bladder to the exit ___________________

thyroid

ureters

Vas deferens

urethra

Organism with a backbone ____________________

Organism whose blastopore becomes its anus ____________________

Thin membrane in the coelom that____________________

connects and holds the internal organs

together

Order of mammals that _____________________includes rats, mice, chipmunks, gophers, & squirrels

vertebrate

deuterostome

mesentery

Rodentia

Large flat teeth that grind _______________________and crush food

This energy molecule is stored

in the liver ________________________

This substance is made by the pancreas

and causes cells to release glucose into

the bloodstream. __________________

(Be careful! It sounds like the answer above.Don’t get these 2 confused!)

molars

glycogen

glucagon

Outside body covering in an animal __________________

This kind of body organ works automaticallywithout thinking about it ______________

and is controlled by the medulla oblongata

integument

autonomic

The first part of a four chamber _________________stomach found in some mammals

that contains bacteria to breakdown plants

Small finger-like extensions lining

the small intestine to increase ____________________

Surface area for more nutrient absorption

Small air sacs inside the lungs that__________________

Increase surface area for more gas exchange

Thin plates of fingernail like material

that form a screen in the mouths of

some whales ______________________

rumen

villi

alveoli

baleen

Largest artery _____________________

largest vein ____________________

Pointed teeth that puncturetear, and grip food __________________

These small thin walled blood vessels

connect arteries and veins and are the

place where gases, wastes, & nutrients

are exchanged __________________

aorta

Vena cava

canines

capillaries

Joining of an egg & sperm insidethe female’s body ____________________

Kind of development in whichoffspring are born/hatch lookinglike their parents only smaller ____________________

Kind of circulatory system in whichblood is contained inside vessels __________________

Organism that has a notochord,

pharyngeal pouches, a post anal tail,

and a dorsal nerve cord ______________________________

Internal fertilization

Direct development

closed

Chordate

Maintaining the correct balance of water and ____________________ ions in the body

Covering made of bone that ____________________

protects the brain; also called skull

Nerve cord surrounded by bone

or cartilage; also called a

Spinal cord _____________________

osmoregulation

cranium

Vertebral column

Eardrum ____________________

Whiskers _____________________

Part of the small intestine

closest to the cecum _____________________

A protein found in human hair ________________ & fingernails as well asthe scaly skin of reptiles and bird feathers

Typanic membrane

vibrissae

ileum

keratin

Ringed tube that carries air fromGlottis to bronchi ____________________ Smaller ringed tubes that carry airfrom trachea into lungs____________________

Largest vein returning bloodto heart __________________

Largest artery leaving heart ________________________

Organ that absorbs water andconcentrates digestive waste ____________________

trachea

bronchi

Vena cava

Aorta

Large intestine

Opening at back of throat forfood to enter esophagus ____________________ Part of the small intestine ____________________closest to the stomach

Bile storage organ __________________missing in rats

Process used by bats which bounceshigh frequency sound waves off objects to determine their location, distance, and size ______________________________

gullet

duodenum

Gall bladder

echolocation

Blood vessels that carry blood ______________________away from the heart

Part of the brain that controls autonomic internal organs _________________

Chisel-like front teeth that cut food _________________

Part of the brain that controls

balance and muscle coordination __________________

arteries

Medulla oblongata

incisors

cerebellum

Scientific name for “nostrils” ____________________

Male reproductive structure____________________that adds fluid to and stores sperm

Circulation that carries blood

from heart to lungs and back to heart__________________

Urine storage organ _________________________

Circulation that carries blood from heart

to body organs and back to heart ____________________

nares

Seminal vesicles

pulmonary

Urinary bladder

systemic

Blood vessels that carry blood back _________________

to the heart

Exit opening shared by excretoryand reproductive systems _________________

Part of the brain that integrates

info from the other brain parts and where

higher brain functions like memory, learning,

reasoning, and problem solving occur _____________________

Modified skin glands that produce

Milk for young __________________________

veins

Urogenital opening

cerebrum

Mammary glands

Gland that controls heart rate,Blood pressure, and metabolism __________________ Finger-like extensions INSIDEthe small intestine to increase

absorption ____________________

Body temperature that isdependent on their environment__________________ “cold-blooded”

Organ that makes, stores, andrecycles red blood cells ______________________

thyroid

villi

ectothermic

spleen

Organ that makes eggs ____________________

Organ that makes sperm ____________________

Place where tails are added tosperm __________________

Opening at back of mouth to

the lungs ____________________

ovary

testes

epididymis

glottis

Order of mammals with a larger brain,fingernails instead of claws, forward facingeyes for binocular vision, and grasping handswhich includes: humans, apes, monkeys, baboons,and similar animals ____________________

Aquatic carnivorous mammals with streamlined bodies and flipper-like limbssuch as seals, sealions, & walruses ____________________

Teeth that shear, shred, cut, & grind __________________

primates

pinnipeds

premolars