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41 Cards in this Set
- Front
- Back
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Arteries transport blood?
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Away from the heart
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Name the 3 layers of muscle in an artery
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Tunica adventitia - outer layer Tunica media - middle layer Tunica intima - inner lining |
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As arteries branch and become smaller these are called?
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Arterioles
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an end artery is?
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an artery that is the sole source of blood flow to an area of tissue
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smallest arterioles break up into?
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capillaries |
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capillary walls consist of what?
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a single layer of endothelial cells sitting on a very thin basement membrane |
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what do veins do?
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return blood at a low pressure to the heart
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when cut what will a vein do?
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slow and steady seep of blood.
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some veins contain what?
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valves
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the heart lies in the?
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thoracic cavity, in the mediastinum (space between lungs)
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Heart wall is comprised of 3 layers
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pericardium myocardium endocardium |
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myocardium is?
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composed of specialist cells only found in the heart
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interior of the heart is divided into how many sections?
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4 left and right atrium and left and right ventricle
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endocardium?
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lines the chambers and valves of the heart
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the partition between ventricles is called?
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septum
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the base of the heart is called?
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apex
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name the valves of the heart
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tricuspid, bicuspid, semilunar, atrioventricular valves
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anatomical landmarks for hearts position?
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apex of the heart lies 9cms to the left of the midline at the level of the 5th intercostal, a little below the nip
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How many litres of blood does a human body contain?
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5-6
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3 main types of blood cells
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erythrocytes - red blood cells leukocytes - white blood cells platelets- clotting |
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what is the iv cranial nerve?
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Trochlear
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VII cranial nerve?
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Facial
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x cranial nerve
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vagus
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Name the 2 types of nervous system
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Central nervous and peripheral nervous system
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CNS is made up of
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Brain spinal cord |
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PNS is made up of ?
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peripheral nerves
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Afferent means?
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impulses in
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Efferent means
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impulses out
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axons are?
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the electrical wire that carries nerve impulses away from the cell body
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ganglia are
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a mass of nerve tissue
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nuclei is?
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the brain of a cell |
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T- cells are created in the? |
thalamus
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B cells are made in the?
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Bone marrow
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yelin sheeth is
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insulator that speeds up impulses |
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synapse is
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point of impulse from one to another
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Hypothalamus controls?
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autonomic nervous system
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how many pairs of spinal nerves does an average person have
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31 |
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autonomic reflexes are ?
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subconcious
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A seizure is?
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a sudden surge of electrical activity in the brain
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2 types of seizure are?
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tonic clonic vacant |
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