Digestive System

1..esophagus - The part of alimentary canal that connects the throat to the stomach.
2. digestion - break down food in the stomach and intestines.
3. micro size - extremely small.
4..saliva - a watery liquid secreted in the mouth by glands providing lubrication
...for chewing and swallowing and adding to digestion.
5. stomach - the organ that contains acid and enzymes so you can break down your food
6. substances - a particle kind of matter with uniform properties.

Endocrine System

1. adrenal gland - two small glands one located near the upper part of the kidney that function
in the endocrine system
2. endocrine gland - regulates body function
3. hormone - a chemical messenger that controls various bodily functions such
as metabolism, growth and development
4. pineal gland - the hormone gland located in the brain that secretes melatonin
5. thymus - butterfly shaped gland lying at the base of the neck.
6. thyroid gland - a butterfly-shaped gland lying at the base of the neck beneath
the voice box (larynx) that produces thyroid hormone. The thyroid helps regulate growth and metabolism

Excretory System

1. excretes - to separate and discharge (waste matter) from the blood tissues or organs
2. feces - bodily waste discharged from the anus
3. rectum - portion of the large intestines nearest to the anus
4. sweat glands - glands in the skin that secrete sweat
4. urethra - the tube that carries the urine out of your body

Immune System

1. adenoids - a mass of enlarged lymphatic tissue between the back of the nose and the ...back of the throat.
2. appendix - A tube shaped sac attached to the lower part of the large intestines
3. detection-the action or process of identifying the presence of something concealed.
4. lymph nodes-each of a number of small swellings in the lymphatic system.
5. . lymphatic vessels - the blood vessels of the Immune System
6. pathogens-a bacterium virus or other microorganism that can cause disease
7. spleen: The organ that is involved in the removal of blood and dead cells
8. thymus: A lymphoid organ situated in the neck of vertebrates that produces
9. tonsils - two masses of lymphatic tissues on each side of the roots of the tongue

Integumentary System

1. epithelial tissue - thin tissue forming the outer layer of a body’s surface.
2. dermis - is the second layer of the skin right under the epidermis
3. epidermis - the outer layer of cells covering an organism.
4. notable - worthy of attention or notice; remarkable;
5. stratum corneum - the outermost layer of the epidermis
6. stratum granulosum - right under the stratum corneum and the second layer of the epidermis
7. stratum lucidum -right under the stratum granulosum and the third layer of the
epidermis
8. subcutaneous layer: is the last layer of the skin and is under the dermis

Muscular System

1. cardiac muscles - involuntary muscles that contract the heart to pump the blood through it.
2. internal organs - the organs that are inside your body
3. muscles - a bundle of fibers which have the property of contracting and relaxing and
which produce motion.
4. organs - a differentiated part of an organism that performs a specific function.
5..skeletal muscle - a muscle that is attached to the skeleton and helps your body move
6. smooth muscles - muscles that are in the boy’s internal organs and control the diameter
of blood vessels and the size of breathing space.
7. voluntary muscle - muscles that are attached to the skeleton and move the bones at
joints when the voluntary muscles contract and relax.

Respiratory System

1. abdomen - the lower bottom part of your stomach area.
2. bronchi - the branches on the tranchea leading to the lungs
3. bronchioles - the branch on the branch called bronchus.
4. diaphragm - the muscle under your lungs.
5. lung -the organ that takes in air and takes out carbon dioxide
6..primary-first
7. trachea - the tube that carries air to the lungs and the tube that disperses the
carbon dioxide
8. thorax - your middle part of your body to neck

Skeletal System

1..epithelial-the thin tissue forming the outer layer of a body’s surface and lining
the alimentary canal and other hallow structures.
2..bone marrow-a soft fatty substance in the cavities of bones in which blood cells are
>produced.
3..ligaments-a short band of tough, flexible tissue that connects two bones of cartilage or holds together a joint.
4. phosphorus - minerals that your body needs