NAS MCQ QUESTIONS Flashcards
The trachea is made of
Incomplete rings of hyaline cartilage
How is TB spread?
Droplet
How is oxygen carried in the blood?
Erythrocytes
What causes Addison’s Syndrome?
Hypersecretion of adrenocortical hormones
How does the parasympathetic nervous system affect the digestive system?
Increases the flow of saliva and enhances peristalsis
Where can the enzyme Trypsin be found?
Juices from the pancreas
Where does ingestion take place?
Mouth
What does a deficiency in Vitamin K cause?
Hemorrhage
Which enzyme does hydrochloric acid activate?
Pepsin
What is the function of adipose tissue?
Protect and insulate the body
What type of tissue is Areolar Tissue?
Connective tissue
What is the role of the Endoplasmic Reticulum?
It is a protein factory
How is lymph drained back into the bloodstream?
Through the lymphatic nodes
The function of the lymph nodes include
Act as a biological filter
Cystitis is inflammation of the
Bladder
A ligament connects
Bone to bone
The function of a lymph vessel is to
Work with blood to collect and distribute waste
Control of balance and co-ordination are functions of the
Cerebellum
The fifth cranial nerve is the
Trigeminal nerve
The function of the myelin sheath includes
To speed up nerve conduction
Characteristics of arteries
Thick walled, small lumen
The arteries and veins of the lower arm and hand are
Cephalic, basilic
The release of nor adrenaline causes
Accelerates conversion of glycogen to glucose
The cause of Cushings disease include the
Hyper secretion of glucocorticoid hormones
The posterior lobe of the pituitary gland secretes
Vasopressin and oxytocin
Hyper secretion of the thyroid gland can cause
Graves’ disease
Hormones are carried in the
Circulatory system
Lordosis is defined as
Exaggerated inward curvature of the spine
The bones of the cranium
Frontal
Parietal
Temporal
Occipital
Sphenoid
Ethmoid
Where is phosphorus stored
Bones
Age of consent of a minor in Ireland
17
Internal carotid arteries supply the
Brain
Oropharynx lies posterior to what
Oral cavity
Who calls for a mobile trauma team at a major incident
Medical officer
The prostate gland surrounds what
Urethra
The chance of a non immunised person contracting hepatitis B after exposure to infected blood is
30%
Opening of the uterus is the
Cervix
Part of management of tricyclic overdose includes
Supportive care and transport to hospital
Arterial PO2 of a person breathing room air is
95mmHg-105mmHg
Atmospheric pressure at sea level
760mmHg
Parasympathetic stimulation does what to gastrointestinal activity
Increases it
IM injection site in gluteal muscle
Upper outer quadrant
Where is decussation of pyramids
Medulla
When does a test to prove a negative result to HIV following exposure need to be done
3 months
Side effect of lidocaine
Convulsions
Migraine prophylaxis drugs use
Beta blockers
What is located within the inguinal canal
Spermatic cord
Thyroxin release results in
Increased basal metabolic rate
The enhancement of one drug by another is
Potentiation
ACLS class iii drugs are
First line of action
Organophosphates side effects
Salivation
Type of drugs used to treat asthma
Beta ii agonists
Location of performing triage sieve is
At the site of the incident
Who designates hospitals at a major incident
Medical officer
Ilium articulates posteriorly with
Symphys pubis
Symphysis pubis is made from
Fibrocartillage
Function of the thalamus
Sensory relay of nerves
Function of plasma proteins
Maintain osmotic pressure
Function of hypothalamus
Temperature control
Hartman’s contains
Potassium
How many phalanges are there in the hand
14
Larynx is situated between the
3rd-5th cervical
Insulin stores glucose by
Gluconeogenieses
Lung compliance means
The ability for the lung to expand
Valves in vent system
Mitral/pulmonary
Increased heart contractions is
Inotropic effect
Total lung capacity in a male is
6000mls
First pass absorption of medications occurs where
Liver
Organophosphate poisoning is most common in
Agricultural workers
What cells are involved in bone formation
Osteoblasts
Where is the glenoid cavity located
Scapula
The cillary body is located where
The eye
The spine exits the skull via
Foramen magnum
How many spinal nerves are there
31
How many cranial nerves are there
12
The intercostal nerves leave the spinal cord between
T1-T12
Where are baroreceptors found
In the aorta and carotid bifurcation
Define aneurysm
Weakened area of a wall of a blood vessel
What does T wave inversion represent
Ischemia
During ventricular systole what valves are open
Aortic and pulmonary
Subclavian artery originates from
Aortic arch
Spinal cord terminates at
L1 and L2
Subarachnoid space contains
CSF
Diencephalon functions carried out by the thalamus
Serves as a relay station for sensory and motor impulses
Medulla contains?
Vital reflex centres
The volume of CSF present
120mls
The function of the cerebellum
Balance, equilibrium, muscle tone, and the co-ordination of voluntary motor movement
CSF is located between
Arachnoid and pía mater
Diaphragm is inverted by
Phrenic nerve
The largest part of the brain is
The cerebrum
A patient on a proton pump inhibitors would have
Gastric ulcer
Stretch receptors in lungs transmit nerve impulses via
Vagus nerve
Define hering breuer reflex
A reflex triggered to prevent over inflation of the lungs
Pharyngeal muscles are controlled by which cranial nerve
9th cranial nerve
Which cranial nerve is responsible for constriction of the pupils
Occulormotor
What type of membrane is the pleura
Serous membrane
Most important respiratory muscle
Stemocleidmastoid
Breakdown of erythrocytes
Haemolysis
How many pairs of intercostal muscles are there
11 pairs
Where is the hormone relaxin produced
In the reproductive glands
One of the complications of IV fluid administration
Cellulitis
The process of excreting a drug through the kidney involves
Glomerular filtration, reabsorption, tubular secretion, excretion
Difference between L and R bronchi
The right is wider, shorter, more vertical than the left
In the Irish judicial system, which is the lowest court that sits a jury
Circuit court
