The pressure in the systemic arteries during ventricular contraction is
A) diastolic blood pressure
B) osmotic pressure
C) systolic blood pressure
D) low pressure
C) systolic blood pressure
In what order does the impulse for depolarization travel through the heart?
A) AV node, SA node, bundle of His, Purkinje fibres
B) SA node, AV node, bundle of His, purkinje fibres
C) SA node, AV node, purkinje fibres, bundle of His
D) AV node, SA node, purkinje fibres, bundle of His
B) SA node, AV node, bundle of His, purkinje fibres
The muscle sphincter located between the stomach and the duodenum is the
A) pylorus
B) cardia
C) chyme
D) rugae
A) pylorus
When a stimulation is strong enough to cause complete depolarization, it has reached
A) threshold
B) repolarization
C) refractory period
D) action potential
A) threshold
Smooth muscles can be found in the
A) heart
B) stomach
C) pelvic limb
D) diaphragm
B) stomach
On inspiration, the pressure in the thoracic cavity, as compared with ambient air pressure is
A) negative
B) positive
C) same as the ambient air pressure
D) fluctuating
A) negative
The cranial nerves originate from the
A) cerebellum
B) spinal cord
C) brain stem
D) cerebrum
C) brain stem
In dairy cattle, teats and udders are gently washed before milling to stimulate the release of one of the following, to stimulate milk letdown
A) adrenalin
B) norepinephrine
C) dopamine
D) oxytocin
D) oxytocin
What percentage of an animals body weight consists of blood?
A) 0.1%
B) 1%
C) 8%
D) 30%
C) 8%
What circulatory system is under the highest pressure?
A) pulmonary
B) coronary
C) systemic
D) capillaries
C) systemic
In birds, the cloaca is
A) an appendage suspended from the head
B) a blind sac at the distal end of the jejunum
C) a cleft in the hard palate
D) a common passage for fecal, urinary, and reproductive systems
D) a common passage for fecal, urinary, and reproductive systems
All of the following major vessels contribute to blood flowing into the cranial vena cava except for the
A) brachiocephalic vein
B) thoracic duct
C) azygos vein
D) femoral vein
D) femoral vein
Which of these is not a division of the small intestine?
A) duodenum
B) ilium
C) ileum
D) jejunum
B) ilium
Which of the following is a ductless system?
A) exocrine system
B) endocrine system
C) lymphatic system
D) all of the above
B) endocrine system
The lymphatic structure found in the small intestines responsible for the transport of fats and fat soluble vitamins is
A) afferent lymphatic vessels
B) lacteals
C) trabeculae
D) spleen
B) lacteals
The time period from the beginning of one heat cycle to the next is called
A) estrous
B) estrus
C) ovulation
D) mating cycle
A) estrous
The anatomical term for synovial joints is
A) fibroarthroses
B) amphiathroses
C) synarthroses
D) diarthroses
D) diarthroses
The name of the hole between the cardiac atria that closes at birth is
A) aortic hiatus
B) foramen
C) fossa
D) foramen ovale
D) foramen ovale
The ear drum is also called
A) pinna
B) tympanic membrane
C) eustachian tubes
D) cochlea
B) tympanic membrane
The function of the red blood cell is to
A) provide defense from foreign invaders
B) act as a phagocyte
C) carry oxygen to the tissues
D) respond to the need for clotting
C) carry oxygen to the tissues
What artery carries deoxygenated blood?
A) aorta
B) pulmonary
C) coronary
D) carotid
B) pulmonary
RBC production is stimulated by
A) hypoxia and erythropoietin
B) erythropoietin and thrombocytes
C) fibrinogen and acetylcholine
D) leukocytes
A) hypoxia and erythropoietin
What structure is the pacemaker of the heart?
A) bundle of His
B) purkinje fibres
C) atrioventricular node
D) sinoatrial node
D) sinoatrial node
In the normal heart ECG, the QRS complex corresponds to what portion of the cardiac cycle?
A) the QRS is the entire ECG cycle
B) atrial depolarization
C) ventricular depolarization
D) ventricular repolarization
C) ventricular depolarization