26 Questions
Which hormone is responsible for contraction of uterine smooth muscle?
Oxytocin
What is the most common cause of increased hormone production in hyperpituitarism?
Anterior pituitary adenomas
Which clinical syndrome results from sustained excess of growth hormone (GH) prior to epiphyseal closure?
Gigantism
Which hormone is commonly associated with hyperprolactinaemia?
$Prolactin$
What are the main effects of VASOPRESSIN (ADH)?
$Vasoconstriction, gluconeogenesis, platelet aggregation$
Which part of the pituitary gland is also known as neurohypophysis?
Posterior lobe
Which part of the pituitary gland consists of highly vascular epithelial cells?
Anterior lobe
Which part of the pituitary gland is an upward extension from pars distalis that encircles the infundibulum?
Pars tuberalis
Which part of the pituitary gland lies posterior to the anterior lobe?
Pars nervosa
What is the connection between the pituitary and hypothalamus called?
Infundibulum
What is the stimulus for the vision sense organ?
Light waves
Which part of the eye protects the anterior part of the eye?
Middle vascular pigmented layer
What is responsible for bringing light rays to focus on the retina?
Lens
Where is the visual cortex located for the perception of visual stimuli?
Occipital lobe
Which part of the eye is involved in lubricating and protecting the eye?
Tear film
Which part of the eye plays a role in the accommodation process for focusing on objects at different distances?
Lens
What is the function of the tear film?
Optimizing corneal optic properties
Which layer of the tear film acts as a lubricant for the movement of the lids over the cornea?
Lipid layer
What contributes to the transparency of the cornea?
Regular arrangement of collagen fibrils in substantia propria
Which reflex protects the eye by causing reflexive closure of the eyelid?
Protective eye lid closure reflex
What is the primary function of the aqueous humor?
Maintaining intraocular pressure
Which nerve is responsible for mydriasis and relaxation of ciliary muscles?
Sympathetic nerve
What is the pH of the tear film?
7.4
Which layer of the tear film is secreted by Meibomian glands and prevents evaporation of underlying layers?
Lipid layer
What covers and protects the cornea and conjunctiva, and is secreted from the lacrimal gland under the upper eyelid?
Tear film
What removes cells, foreign bodies, irritant substances, and supplies the corneal wound with WBCs from blood?
Tear film
Test your knowledge on the pathology of the pituitary gland including hyperpituitarism, hypopituitarism, and tumors such as pituitary adenomas and craniopharyngioma.
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