bio - organs

e

What is the digestive track lined with

Epithelial Cells

What is Chemical digestion

 enzymes in the saliva break down carbohydrates

Stomach

Muscular sac that holds and churns food using smooth muscles

Small Intestine

Surrounded by capillaries to absorb nutrients

Large Intestine

Reabsorbs water into the body to create solid waste

Rectum

Rectum stores fecal matter

Anus

Anus has two sphincters where fecal matter is released

Liver

makes and secretes bile, which helps break down fat

Gallbladder

stores and concentrates bile

Pancreas

secretes digestive enzymes to breakdown carbohydrates, proteins and lipids

Peristasis

muscle contractions that move food down the esophagus

Path Of Digestion

Mouth, Esophighs, Stomch, Samll Intestine, Large Intestine, Rectum, Anus

Path Of Air

nose, pharynx, larynx, trachea,branches off two bronchi,bronchioles,alveoli

respiratory tract is lined with…

epithelial cells

what do epithelial cells do

secrete mucus

what is cilia..

hair-like structures that protrude from  epithelial cells

Mouth/Nose

Takes in air; warms and moistens; traps particles

Pharynx

Passage for air to trachea

Larynx

Cords make contact to create sound

Trachea

Passage for air to bronchi

Bronchi

Passage for air to bronchioles

Bronchioles

Passage for air to alveoli

Alveoli

Lined with blood vessels; allows gas exchange

Diaphragm

Contracts and relaxes to move air in and out of lungs

The circlutory system is made up of

1. Blood

2. Heart

3. Blood Vessels

circulitory fuction

Moves nutrients absorbed from small intestine, lungs,

blood drops off CO₂ and picks up O₂ 

Carries wastes away from tissues to kidneys to be removed 

How dose the cirulitory system Regulates temperature

Blood vessels constrict during the cold, Blood vessels dilate during heat.

Arteries

carry oxygenated blood away from heart; have thick walls to withstand pressure

Veins

carry deoxygenated blood toward the heart; thinner walls because lower pressure

Capillaries

, very thin walls; allow substances to diffuse between blood and other tissues

Path Of Blood

Deoxygenated blood enters the right atria, pumped to the right ventricle, The right ventricle pumps it to the lungs to be oxygenated, Oxygenated blood returns to the heart, left atria and is then pumped into the left ventricle, The left ventricle pumps the oxygenated blood to the bod

Red blood cells

Carrys Oxgen

White blood cells

Fight Infection

Platelets

allow blood clotting

Plasma

 protein-rich liquid

3 resons for cell divison

growth, tissue repair, reproduction

 zygote

the single cell created when a sperm fertilizes an egg

stem-cell

unspecialized cells with the ability to self-renew

cellular differentiation

the process where an unspecialized stem cell transforms into a more specialized cell type

Differentiate between embryonic and tissue stem cells

Embryonic stem cells are only found in embryos, tissue stem cells are not

Regeneration Can

Liver, Skin, Bone

Regeneration Cant

Brain, heart, kidneys

Ethical Issues

abortion

Central Nervous System

Brain and spinal cord

Peripheral Nervous System

motor nerves, sensory nerves.

look

a

bones

rigid structures that make up the skeleton

Ligaments

tough bands of fibrous tissue that connect bones to other bones,

Cartilage

flexible tissue that cushions joints

3 type of tissue

skeletal, cardiac, and smooth muscle

Circulatory to Respotory (everything)

Moves oxygen and

glucose around

the body so cells

can do work

Skeletal to Nerveos

Spine sends messgaes to the brain

Digestive to skeletal

gives nutreines for skeltal growth

Skeletal to circulary

Bone marrow makes red blood cells

digestive to circulatoy

Provides the

heart with

nutrients so the

heart can keep

beating

circulaitoy funtion

regulatie tempture, provdies nutriens, supports immune system

Nerve

dendrites, nuculus, cell body, axon, myelin selth, shwann cell, node of ravnever, axon terminal