Science Bowl: Life Science:Tissues and Organ Systems

Homeostasis

Maintains a temperature of 98.6 degrees F depending on the temperature (maintenance of stable body conditions)

Main tissue types

Epithelial,connective,muscular,nervous tissues

Epithelial tissues

covers the outside of the body and lines inner surfaces of body (skin)

Connective tissues

(basically the cytoplasm of the body)Connects,supports,protects,nourishes,and insultates organs.(ligaments cartilage blood)

Muscular tissues

Allows movement(diaphragm,heart,triceps,biceps)

Nervous tissues

Transmits messages throught body(communication/Brain,spinal cord,nerves)

Skeletal systems

made up of bones and cartilage that is the frame of your body.

Muscular system

includes the muscles that help you move as well as things in the inside

Skeleton

made of bone and a hard but flexible tissue called cartilage

Skelton bones’ jobs

1.support body and give its shape

2.Protects internal organs

3.Allows you to move

4.Store minerals and make blood cells

Joints

where two or more bones meet.Ligaments hold this together

Some joints in the human body

Pivot joint,gliding joint,hinge joint,ball and socket joint

Pivot Joint

Bones rotate around each other

(neck,elbow)

Gliding Joint

Bones slide over each other

(wrist,ankle,vertebrae)

Hinge Joint

Back-and-forth

(Knee,elbow,fingers,toes)

Ball-and-socket joint

rotational or circular

(shoulder,hips)

Muscular system

includes skeletal muscle,cardiac muscle,smooth muscle

Skeletal Muscle

Muscles that contract to move bones

Tendons

attach skeletal muscle to bones

Voluntary muscles

Gets controlled by your movement

Involuntary Muscles

Muscles that are not under your conscious control

Smooth muscle

a type of involuntary muscle

Cardiac Muscle

another type of involuntary muscle that is only in the heart

Digestive system

Breaking down food into substances the body uses

Mechanical digestion

Breaks food into smaller pieces

Chemical digestion

uses enzymes to break up larger food molecules that can be taken up by cells.

The digestive process

The process in which food comes in and out

1.Mouth

where the teeth grinds food and the saliva breaks down starches into smaller sugars

2.Epiglottis

this prevents swallowed food from entering your lungs

3. Esophagus

this Carries food to the stomach

4.Liver/gall bladder

Bile is produced from the _____ and stored in the ___ _______.Bile is then released and breaks up large fat molecules

5.Pancreas

here the enzymes break down carbohydrates and protein into the small intestine

6.Stomach

The _______ breaks down food into liquid

7. Small intestine

Liquid food goes into here and this is where the most chemical digestion occurs

8.Villi

The tiny fingerlike structures in the small intestine absorb the nutrients.The nutrients then are carried to cells throughout the body

9.Large intestine

More harder materials go into here where it absorbs much of the water trapped inside of the food. The stuff that remains is called Feces

10.Rectum and Anus

The feces exits the large intestine and through the rectum then out of the body in the ____