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The Systems of the Human Body. Can you guess how many different system make up the Human Body? Well….the correct number is 11!! 11 different systems all working together for you to function. How many do you know out of those 11? We will go over all 11 in today’s lecture!.
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The Systems of the Human Body • Can you guess how many different system make up the Human Body? • Well….the correct number is 11!! 11 different systems all working together for you to function. • How many do you know out of those 11? • We will go over all 11 in today’s lecture!
Levels of Organization • Lets review…What are the levels of organization within a single human body?? • Atoms/Molecules • Cells • Tissues • Organs • Systems • Organisms/Individual
Integumentary System Integumentary System
Skin, hair, nails, sweat glands, and sebaceous glands. Protect underlying tissue, help regulate temp, sensory receptors, and synthesize certain products. Integumentary System
Bones, ligaments, tendons, and cartilage. Provides frameworks, protective shield for softer tissue, attachment for muscles, and act together with muscles for movement Tissue within the bones produce blood cells, store inorganic salts.
All muscles… Smooth, cardiac, and skeletal.. Force for body movement, help maintain posture, are the main source of body heat. Aids in circulation of blood and food throughout the body. MUSCULAR SYSTEM
Brain, spinal cord, nerves, and sense organs. Nerve cells send nerve impulses Specialized sensory receptors. Some nerves receive/send impulses Some carry impulses from the brain or spinal cord to muscles NERVOUS SYSTEM
NERVOUS SYSTEM • The basic unit of the nervous system are neurons. • There are 3 types: sensory, motor, and interneurons!
Function: Controls growth, development, and metabolism. Maintains Homeostasis ORGANS- Pituitary, thyroid, parathyroid, and adrenal glands, pancreas, ovaries, testes, pineal gland, and thymus gland ENDORCRINE SYSTEM
Includes heart, arteries, veins, capillaries, and blood Heart-pump that forces blood through blood vessels. Blood- carries oxygen from lungs and nutrients from digestive organs to all body cells CIRCULATORY SYSTEM
These are red blood cells! They are the most numerous cells in the body. These cells transport oxygen. The cells actually have no nuclei. They live in the human body for about 120 days! Heart-pump that forces blood through blood vessels. Blood- carries oxygen from lungs and nutrients from digestive organs to all body cells CIRCULATORY SYSTEM
Function: Helps to protect the body from disease Collects fluid lost from blood vessels & returns the fluid to the circulatory system. Structures: White blood cells, thymus, lymph nodes, lymph vessels Lymphatic/Immune System
. Digestive System • Includes: Mouth, tongue, teeth, salivary glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small and large intestine • Breaks down food to similar forms that can pass through cell membranes to be absorbed.
Materials not absorbed are transported back outside the body. (Primarily the job of your colon) Certain digestive organs produced hormones and function as part of the endocrine system. Digestive System
Includes: Nasal cavity, pharynx, larynx, trachea, bronchi, and lungs Function: Takes air in and out and exchanges gases between blood and the air. (O2 in and CO2 out ) The Respiratory System
Excretory/Urinary System Urinary System Urinary System
Primarily includes kidney, ureters, urinary bladder, and uretha Some resources include lungs & skin Kidneys remove wastes from blood and assist in maintaining the body’s water and electrolyte balance Product is urine Excretory/Urinary System
Reproductive SystemFemale • Ovaries, uterine tubes, uterus, vagina, clitoris, vulva • Function: Produce and maintain egg cells, receive sperm cells, support development of an embryo and function in birth process
Reproductive SystemMale • Scrotum, testes, epididymides, vasa deferentia, seminal vesicles, prostate gland, bulbourethral glands, urethra, and penis • Function: Produce and maintain sperm cells, transfer sperm cells into female reproductive organs.