Nervous System Flashcards
Central nervous system
Responsible for voluntary body action
Peripheral nervous system
Carries messages to and from nervous sytem
Trifacial nerve
Chief sensory nerve, transmits facial sensations to brain, controls motor nerve function of chewing
Autonomic nervous system
Responsible for all involuntary body functions
Autonomic nervous system
Responsible for all involuntary body functions
Digestive system
Breaks down food into simpler chemical compounds easily absorbed by cells or eliminated from body
Enzymes
Break down food
Excretory system
Eliminates solid, liquid, or gaseous waste products
Skin
Releases water, carbon dioxide, and other waste through sweat glands
Liver
Converts and neutralizes ammonia from circulatory system to urea
Kidneys
Receive urea from liver, urea passes through nephrons, nephrons filter waste products and water, allowing nutrients to be reabsorbed into blood. Excreted waste products travel through into urine
Respiratory system
Intake oxygen, exhale carbon dioxide
Lungs
Air enters when inhale, cells process oxygen for absorption into bloodstream, carbon dioxide releases on exhale
Diaphragm
Expands and contracts automatically to force air in and out of lungs
Endocrine system
Regulate and control growth, reproduction, and health of body. Manufactures and secretes hormones into blood stream affects hair growth, skin condition, and energy levels
The nervous system is made up of the central nervous system, the peripheral nervous system, and the
Autonomic nervous system
The brain, spinal cord, and spinal and cranial nerves make up
Central nervous system
What crucial part of the central nervous system is composed of long nerve fibers and originates in the base of the brain and extends to the base of the spine?
The spinal cord
What system is composed of sensory and motor nerves that extend from the spinal cord and brain to other parts of the body?
The peripheral nervous system
Motor nerves carry messages from the brain to the muscles and are called
Motor (efferent) nerves
Primary motor nerve of the face is the
Facial nerve
The digestive, respiratory, and circulatory systems are controlled by the
Autonomic nervous system
The system that breaks down food to be easily absorbed by cells or to become waste products
Digestive system
Primary function of the excretory system
Eliminate waste products from the body
Hair growth, skin conditions, and energy levels are all controlled by
The endocrine system
