Nervous Sytem And Circulatory System Flashcards
Main purpose of the nervous system?
To gather, interpret, respond to, store, and retrieve information
The nervous system is made up of the?
Central and peripheral nervous systems
Two main organs of the CNS?
The brain and spinal cord
Main component of the nervous system?
The central nervous system
Artery
A blood vessel that takes oxygen-rich blood away from the heart
Chamber
A space or room within the heart
Electrical Impulse
A sudden surge of energy in one direction
Pulmonary
Having to do with the lungs
Systemic
Having to do with the entire body
What is the purpose of the CNS?
Receives information from sense organs, analyzes the information, and then initiates a response which is carried to the designated body part via the peripheral nervous system
Links CNS to rest of body?
Peripheral nervous system
Basic unit of the nervous system?
A neuron, or nerve cell
A neuron transmits information in the form of?
Electrical impulses
Electrical impulses can travel from neuron to neuron at speeds close to?
Several hundred miles per hour
Central control unit of body?
Nervous system
Nervous system coordinates the body’s systems via the?
Autonomic nervous system and the somatic nervous system
Autonomic nervous system
Sends signals to certain organs so that they function without conscious thought
Somatic nervous system
Sends signals to muscles that are controlled voluntarily
The ___ system is of particular importance to the body?
Circulatory
Red blood cells?
Bring life-sustaining oxygen to other cells and take life-threatening Carbon dioxide away
White blood cells
Help body fight infection and inflammation
With every beat of your heart, life-giving and life-protecting blood cells are pumped throughout your body via?
75,000 miles of blood vessels
The circulatory system is divided into two main parts:?
The systemic circulation and the pulmonary circulation
Main organ of the circulatory system?
Heart
Brings carbon dioxide-filled blood to lungs?
Systemic circulation
Body’s main artery?
Aorta
The human heart is divided into?
4 chambers
Left side of heart performs?
The systemic circulation
Systemic circulation?
Disperses oxygen-rich blood throughout the body
Capillaries
Transfer waste-filled blood from tissues into the pulmonary circulation
Carbon dioxide is removed from the bloodstream by the?
Lungs
Two upper chambers of heart?
Left and right atrium
Two lower chambers?
Left and right ventricles
Steps of circulatory system?
- Oxygen-poor blood flows from body into the right atrium
- Blood flows through right atrium into the right ventricle
- Right ventricle pumps the blood through pulmonary artery.
- Pulmonary artery Carrie blood to lungs, where carbon dioxide is removed
- Oxygen is added to blood and returned to heart
- Newly oxygen-rich blood returns to heart and enters left atrium from pulmonary system
- Blood flows through left atrium and into the left ventricle
- The left ventricle pumps the oxygen-rich blood through aorta, then it is dispersed throughout the body through network of blood vessels called arterioles.
- Oxygen and nutrients are are passed into tissues through tiny blood vessels connected to the arterioles called capillaries.
- Blood is pumped the tissues and into pulmonary circulation, carrying carbon dioxide and other waste materials
- Capillaries connected to another network of blood vessels, venules, pass waste-filled blood into veins
- Body’s veins converge into 2 main veins which carry blood back to heart
_____ system pumps blood to the ____ and the ____ system pumps blood to the ____ systems
Pulmonary, lungs, systemic, body
It takes heart how long to pump a given portion of blood through entire circulatory system?
30 seconds
