EMS 121 Quiz Study 2025 Questions
and Answers
phrenic nerve - ANSWER-Transmits electrical impulses to the diaphragm to
contract
3 respiratory components of adequate breathing - ANSWER-Respiratory rate, tidal
volume, virtually effortless
5 signs of adequate breathing - ANSWER-Good respiratory rate
Equal chest expansion
Regular pattern
Good chest expansion (expands enough)
No head bobbing
Pericardium - ANSWER-Double-walled sac that encloses the heart, gives support,
and prevents friction as it moves
Anterior descending branch - ANSWER-Supplies blood to the left side of the
heart
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Left coronary artery - 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 - ANSWER-Supplies right atrium and most of right ventricle
Sinoatrial node - ANSWER-pacemaker of the heart
Vessel types - ANSWER-veins, arteries, arterioles, capillaries
Cerebrum - ANSWER-Area of the brain responsible for all voluntary activities of
the body
Diencephalon - ANSWER-thalamus and hypothalamus
Thalamus - 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 - 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 - ANSWER-responsible for automatic survival functions
Spinal cord - ANSWER-Nerves that run up and down the length of the back and
transmit most messages between the body and brain
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
and Answers
phrenic nerve - ANSWER-Transmits electrical impulses to the diaphragm to
contract
3 respiratory components of adequate breathing - ANSWER-Respiratory rate, tidal
volume, virtually effortless
5 signs of adequate breathing - ANSWER-Good respiratory rate
Equal chest expansion
Regular pattern
Good chest expansion (expands enough)
No head bobbing
Pericardium - ANSWER-Double-walled sac that encloses the heart, gives support,
and prevents friction as it moves
Anterior descending branch - ANSWER-Supplies blood to the left side of the
heart
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Left coronary artery - 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 - ANSWER-Supplies right atrium and most of right ventricle
Sinoatrial node - ANSWER-pacemaker of the heart
Vessel types - ANSWER-veins, arteries, arterioles, capillaries
Cerebrum - ANSWER-Area of the brain responsible for all voluntary activities of
the body
Diencephalon - ANSWER-thalamus and hypothalamus
Thalamus - 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 - 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 - ANSWER-responsible for automatic survival functions
Spinal cord - ANSWER-Nerves that run up and down the length of the back and
transmit most messages between the body and brain
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
