Animals are arguably the most complex organism on this planet.
The body is made up of many, many millions of cells which you cannot see unless you use a microscope.
Special cells come together to make organized tissues.
An organ is a complex structure within the body. It has a special job or jobs to do.
The body system is a group of parts that work together to serve a common purpose. Each individual body system works in conjunction with other body system
Parts of Integumentary System: Skin, Nails, and hair
integumentary system protects against injury, infection, and fluid loss. It provides structure and support
parts of muscular system: Skeletal, smooth, and cardiac muscle tissues
Muscular system moves limbs and truck, moves substances through the body, and provides structure and support.
Parts of Skeletal system: bones and joints
Skeletal system protects and supports the body and organs
Parts of Circulatory sytem: Heart, blood vessels, blood, lymph nodes and vessels, and lymph
Circulatory system transport nutrients and wastes
Parts of Nervous Sytem:Brain, spinal cord, nerves and sense organs
Regulates behavior, maintains homeostasis, egulates the organ systems, controls sensory and motor functions.
Nervous System
Parts of Digestive System: Mouth, esophagus, stomach, liver, pancreas, small and large intestines
Extracts and absorbs nutrients from food, remove wastes, and maintains water and chemical balances
Digestive System
Moves air into and out of the lungs and controls gas exchange between blood and lungs.
Respiratory System
parts of respiratory system: Lungs, nose, mouth, and trachea
Parts of Urinary System: Kidneys, urinary bladder, ureters, and urethra
Removes wastes from the blood and regulates concentration of body fluids
Urinary System
Regulates body temperature, metabolism, development, and reproduction, Maintains homeostasis, and regulates other organs.
Endocrine system
Parts of Endocrine System: Hypothalamus and pituitary
Produces gametes and offspring
Reproductive System
Reproductive system: Testes and penis in males and ovaries and uterus in females
Immune System: White blood cells, lymph nodes and vessels and skin
Defends against pathogens and disease
Immune system
Each organ system relies on the other systems to work well to maintain internal stability and balance, otherwise known as homeostasis.
Defend the body by working as a physical barrier to microorganisms
Integumentary to Immune
Movement of the diaphragm in inhalation and exhalation of gases in and out of the body.
Muscular to Respiratory
The brain signals that the digestive tract to process the food taken in.
Nervous to Digestive
Bones which are attached to the muscles (skeletal) allows movement
Skeletal to Muscular
The kidney filters waste from the blood and creates urine
Circulatory to Urinary
Nutrients pass into the circulatory system to be carried to body cells.
Digestive to Circulatory
The lungs are enclosed and protected by the ribcage.
Respiratory to Skeletal
The brain sends signal to stimulate the urge to excrete out produced urine.
Urinary to Nervous
Hormones testosterone and estrogen are produced in the male(testes) and female(ovaries) gonads.
Endocrine to reproductive
Male and female gonads secrete hormones essential for reproduction.
Reproductive to endocrine
Together with the skin, white blood cells serve as lines of the body’s defense from pathogens