EMS 121 Quiz Study UPDATED ACTUAL
Exam Questions and CORRECT Answers
phrenic nerve - CORRECT ANSWER - Transmits electrical impulses to the diaphragm to
contract
3 respiratory components of adequate breathing - CORRECT ANSWER - Respiratory rate,
tidal volume, virtually effortless
5 signs of adequate breathing - CORRECT ANSWER - Good respiratory rate
Equal chest expansion
Regular pattern
Good chest expansion (expands enough)
No head bobbing
Pericardium - CORRECT ANSWER - Double-walled sac that encloses the heart, gives
support, and prevents friction as it moves
Anterior descending branch - CORRECT ANSWER - Supplies blood to the left side of the
heart
Left coronary artery - CORRECT ANSWER - one of two arteries from the aorta that
nourish the heart; (runs from left side of heart then divides into the circumflex and left anterior
descending branches)
Right coronary artery - CORRECT ANSWER - Supplies right atrium and most of right
ventricle
Sinoatrial node - CORRECT ANSWER - pacemaker of the heart
, Vessel types - CORRECT ANSWER - veins, arteries, arterioles, capillaries
Cerebrum - CORRECT ANSWER - Area of the brain responsible for all voluntary
activities of the body
Diencephalon - CORRECT ANSWER - thalamus and hypothalamus
Thalamus - CORRECT ANSWER - the brain's sensory switchboard, located on top of the
brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to
the cerebellum and medulla
Hypothalamus - CORRECT ANSWER - A neural structure lying below the thalamus; it
directs several maintenance activities (eating, drinking, body temperature), helps govern the
endocrine system via the pituitary gland, and is linked to emotion and reward.
Brainstem - CORRECT ANSWER - responsible for automatic survival functions
Spinal cord - CORRECT ANSWER - Nerves that run up and down the length of the back
and transmit most messages between the body and brain
Cerebellum - CORRECT ANSWER - A large structure of the hindbrain that controls fine
motor skills.
9 major arteries - CORRECT ANSWER - Brachial, coronary, carotid, femoral, posterior
tibial, radial, dorsalis pedis, pulmonary, aorta
Components of blood and function - CORRECT ANSWER - Red blood cells: carry
oxygen and nutrients
White blood cells: help defend against infection
Platelets: clot blood areas when needed
Exam Questions and CORRECT Answers
phrenic nerve - CORRECT ANSWER - Transmits electrical impulses to the diaphragm to
contract
3 respiratory components of adequate breathing - CORRECT ANSWER - Respiratory rate,
tidal volume, virtually effortless
5 signs of adequate breathing - CORRECT ANSWER - Good respiratory rate
Equal chest expansion
Regular pattern
Good chest expansion (expands enough)
No head bobbing
Pericardium - CORRECT ANSWER - Double-walled sac that encloses the heart, gives
support, and prevents friction as it moves
Anterior descending branch - CORRECT ANSWER - Supplies blood to the left side of the
heart
Left coronary artery - CORRECT ANSWER - one of two arteries from the aorta that
nourish the heart; (runs from left side of heart then divides into the circumflex and left anterior
descending branches)
Right coronary artery - CORRECT ANSWER - Supplies right atrium and most of right
ventricle
Sinoatrial node - CORRECT ANSWER - pacemaker of the heart
, Vessel types - CORRECT ANSWER - veins, arteries, arterioles, capillaries
Cerebrum - CORRECT ANSWER - Area of the brain responsible for all voluntary
activities of the body
Diencephalon - CORRECT ANSWER - thalamus and hypothalamus
Thalamus - CORRECT ANSWER - the brain's sensory switchboard, located on top of the
brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to
the cerebellum and medulla
Hypothalamus - CORRECT ANSWER - A neural structure lying below the thalamus; it
directs several maintenance activities (eating, drinking, body temperature), helps govern the
endocrine system via the pituitary gland, and is linked to emotion and reward.
Brainstem - CORRECT ANSWER - responsible for automatic survival functions
Spinal cord - CORRECT ANSWER - Nerves that run up and down the length of the back
and transmit most messages between the body and brain
Cerebellum - CORRECT ANSWER - A large structure of the hindbrain that controls fine
motor skills.
9 major arteries - CORRECT ANSWER - Brachial, coronary, carotid, femoral, posterior
tibial, radial, dorsalis pedis, pulmonary, aorta
Components of blood and function - CORRECT ANSWER - Red blood cells: carry
oxygen and nutrients
White blood cells: help defend against infection
Platelets: clot blood areas when needed
