Body Tissues

Epithelial Tissue1. Covers all surfaces

(protects).

2. Line most internal organs (absorbs, excretes).

3. Major tissue of glands (secrete a product).

4. One side exposed to the outside or an open space.

5. Tightly packed (lack blood vessels).

6. Reproduce quickly

SkinStomach

Body TissuesConnective Tissue

1. Cells more widely spaced than epithelial

2. Cells secrete an extracellular matrix

3. Matrix consists of fibers and ground substance (fluid to solid).

4. Tissue specific functions

Body TissuesMuscle Tissue

1. Moves body parts by contraction of fibers

2. Three Types of Cells

1. Skeletal Muscle (striated, voluntary)

2. Smooth (involuntary)

3. Cardiac (heart)

Body Tissues

Nerve Tissue1. Found in brain, spinal

cord, and peripheral nerves.

2. Neuron

1. Nerve cell

2. Transmits impulses to other cells.

3. Neuroglial Cells

1. Support and bind neurons.

2. Carry on phagocytosis.

Body CavitiesA. Dorsal Cavities

1. Cranial Cavity- encases brain

2. Spinal Cavity- surrounds spinal cord

C. Thoracic Cavity- encloses heart, esophagus, lungs, trachea, bronchii

D. Abdominopelvic Cavity (abdominal & pelvic)- encloses digestive, reproductive, and excretory organs

E. Diaphragm- muscle that separates the thoracic and abdominal cavities

Digestive System1. Mouth, salivary

glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small intestine, large intestine.

2. Stores and digests food

3. Converts food into forms that can pass through membranes

4. Eliminates materials not absorbed

Respiratory System1. Nasal cavity,

pharynx, larynx, trachea, bronchi, lungs.

2. Carries air in and out of the body

3. Exchanges oxygen and carbon dioxide between air and blood.

Muscular System1. Skeletal, cardiac,

& smooth muscle

2. Moves body parts

3. Produces body heat

4. Moves blood

Cardiovascular Systems1.Heart, blood vessels,

blood

2.Transports oxygen, carbon dioxide, nutrients, hormones, wastes.

Skeletal System1.Bones, cartilage,

tendons, ligaments2.Functions

a)Supportb)Protective shieldsc)Attachments for

musclesd)Produces blood cellse)Stores inorganic salts.

Nervous Systems1. Brain, spinal cord,

nerves, sense organs2. Receives impulses

from sensory parts3. Interprets impulses4. Acts on impulses by

stimulating muscles or glands to respond.

Other SystemsA. Integumentary System

1. Skin, hair, nails, sweat glands, sebaceous glands (oil)

2. Protects underlying tissue

3. Regulates body temperature

4. Houses sensory receptors

5. Synthesizes various substances.

1.Lymphatic vessels, lymph nodes, thymus, spleen, white blood cells.

2.Transports lymph from tissue to blood

3.Aids in defending against disease.

B. Immune System

C. Excretory System1.Kidneys,

ureters, bladder, urethra, skin, lungs

2.Filters waste from the blood

3.Helps maintain water and electrolyte balance

D. Endocrine System1.Pituitary, thyroid, parathyroid, adrenal, pineal,

thymus glands, pancreas, ovaries, testes.

2.Glands that secrete hormones which help regulate metabolism.

Reproductive System1. Male system

1. Testes, seminiferous tubules, epididymis, vas deferens.

2. Produce and maintain sperm

2. Female system

1. ovaries, fallopian tubes, uterus, mammary glands.

2. Produce and maintain ova and milk

Regulation and HomeostasisA. Body systems work together to maintain homeostasis in the

organismB. Skeletal system can donate calcium ions for muscle

contractionC. Kidneys regulate electrolytes and water balance in blood

Regulation and HomeostasisD. Cardiovascular and respiratory systems regulate body’s pH

E. Integumentary system and cardiovascular system regulate body temperature

F. Integumentary, endocrine, and immune system work to protect the body from infection

Relative Positions

1. Lateral

2. Medial

3. Dorsal

4. Ventral

5. Anterior

6. Posterior

7. Proximal

8. Distal

9. Superior

10. Inferior