NCTI A&P FINAL Exam Questions and
Answers 100% Correct
Aceytlcholine neurotransmitter associated with voluntary muscle control, attention, and
arousal
anaerobic respiration Respiration in the absence of oxygen. This produces lactic acid.
major muscles of the back latissimus dorsi, trapezius, deltoid, infraspinatus, teres minor,
teres major
Components of the respiratory system Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs with alveoli
Diaphragm
Muscles surrounding the ribs
,Mechanics of Ventilation Movement of the Diaphragm and intercostal muscles to increase
(diaphragm/intercostals relax) or decrease (diaphragm/intercostals contract) the pressure in the
chest cavity to cause expiration or inspiration respectively.
keeps alveoli open Surface tension tends to collapse the alveoli, but this is countered by a
kind of "coating" that covers the alveolar surface called surfactant. Surfactant reduces the surface
tension of water, keeping the alveoli open so that we can breathe easily.
pH of body Blood - 7.35 - 7.45
Urine - 6.0
Gastric Acid - 1.5-2
adrenergic receptors receptor sites for the sympathetic neurotransmitters norepinephrine
and epinephrine
Alpha 1 receptors vasoCONSTRICTION -> increase BP, dilate pupils
Beta 1 receptors increase heart rate and force of contraction
, Beta 2 receptors bronchodilation and relaxes the uterus
coronary arteries blood vessels that branch from the aorta and carry oxygen-rich blood to
the heart muscle
cardiac output heart rate x stroke volume
cardiac conduction system The sino-atrial (SA) node.
The atrio-ventricular (AV) node.
The bundle of His.
The left and right bundle branches.
The Purkinje fibres.
SA node The SA (sinoatrial) node generates an electrical signal that causes the upper heart
chambers (atria) to contract.
60-100
Answers 100% Correct
Aceytlcholine neurotransmitter associated with voluntary muscle control, attention, and
arousal
anaerobic respiration Respiration in the absence of oxygen. This produces lactic acid.
major muscles of the back latissimus dorsi, trapezius, deltoid, infraspinatus, teres minor,
teres major
Components of the respiratory system Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs with alveoli
Diaphragm
Muscles surrounding the ribs
,Mechanics of Ventilation Movement of the Diaphragm and intercostal muscles to increase
(diaphragm/intercostals relax) or decrease (diaphragm/intercostals contract) the pressure in the
chest cavity to cause expiration or inspiration respectively.
keeps alveoli open Surface tension tends to collapse the alveoli, but this is countered by a
kind of "coating" that covers the alveolar surface called surfactant. Surfactant reduces the surface
tension of water, keeping the alveoli open so that we can breathe easily.
pH of body Blood - 7.35 - 7.45
Urine - 6.0
Gastric Acid - 1.5-2
adrenergic receptors receptor sites for the sympathetic neurotransmitters norepinephrine
and epinephrine
Alpha 1 receptors vasoCONSTRICTION -> increase BP, dilate pupils
Beta 1 receptors increase heart rate and force of contraction
, Beta 2 receptors bronchodilation and relaxes the uterus
coronary arteries blood vessels that branch from the aorta and carry oxygen-rich blood to
the heart muscle
cardiac output heart rate x stroke volume
cardiac conduction system The sino-atrial (SA) node.
The atrio-ventricular (AV) node.
The bundle of His.
The left and right bundle branches.
The Purkinje fibres.
SA node The SA (sinoatrial) node generates an electrical signal that causes the upper heart
chambers (atria) to contract.
60-100
