Circulatory & Nervous System Flashcards
What is the circulatory system also knows as?
cardiovascular system
What does the circulatory system consist of? (4)
- Closed system of vessels
- Arteries
- Veins
- Capillaries
What do arteries to?
carries blood high in oxygen away from the heart
What do veins do?
carries blood that is low in oxygen content from the body back to the heart
What are capillaries
fine branching blood vessels that form a network between arteries and veins
How do the circulatory and nervous system work together?
the circulatory works the Nervous System to regulate the heartbeat
How does the heart work with the nervous system?
Works with the Nervous System to regulate heart beat
What do the 4 chambers of the heart do?
Keeps oxygen-rich blood from mixing with low oxygen blood
What are the 4 chambers of the heart?
Upper right atria
Lower right ventricle
Upper left Atria
Lower left ventricle
what do valves do?
Keeps blood flowing through the heart in one direction only
what are the 4 valves?
Mitral Valve
Aortic Valve
Pulmonary Valve
Tricuspid Valve
What are the 5 functions of the blood?
Carry nutrients to cells and tissues
Carry away waste products
Equalize body temperature
Works with lymphatic system to protect the body**
From clots to prevent blood loss
What do Internal carotid arteries supply?
blood to the brain, eyes, nose and internal ear
What do External carotid arteries supply?
blood to the anterior (front parts) of the scalp, ear, face, neck, and side of head.
What body system uses a complex language of electrical and chemical impulses?
Nervous system
the brain and spinal cord make up what?
the Central Nervous System (CNS)
What does the Peripheral Nervous System (PNS) do?
Carries messages to/from CNS
The Autonomic Nervous System (ANS) has
2 divisions
What system stimulates, speeds up activity and prepares the body for stress
sympathetic
where does the electrical charge turns into a chemical signal?
The Axon Terminal
What are Neurotransmitters?
molecules that match the modules in the receptor;
like a “lock and key” they are distinctively matched to one another
How many cranial nerves are there?
12
Whats the order of blood flow through the heart
Body
Inferior/superior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary Artery
Lungs
Pulmonary veins
Left atrium
Mitral valve
Left ventricle
Aortic valve
Aorta
Body
