Hormones
The type of hormone that acts on/regulates secretion of other endocrine structures
Tropic hormones
The three formed elements of blood
Erythrocytes, leukocytes, and platelets
The photoreceptor cells important in dim lighting
Static equilibrium and linear acceleration are detected by these two structures
Utricle and saccule
The vessels with the largest lumen
Veins
Single-file RBCs/erythrocytes line up to form this structure to pass through small blood vessels
Rouleau
The posterior cavity contains this substance
Vitreous humor / vitreous body
The wax-like secretion found deep in the external acoustic meatus
Deoxygenated blood returns to placenta via this structure
Umbilical arteries
The synthetic form of oxytocin
Pitocin
The production of formed elements in the blood
Hemopoiesis/hematopoiesis
The 3 regions of the vascular tunic
Choroid, ciliary body, and iris
The overlaying gelatinous mass that hair cells from the spiral organ/organ of corti project into
Tectorial membrane
The groove separating the atria and ventricles
The antagonistic pair that regulates blood sugar levels
Insulin - lowers blood sugar levels
Glucagon - raises blood sugar levels
The granulocytes that release histamine/heparin in damaged tissue
Basophils
The blind spot on the retina lacking photoreceptors
Optic disc
The elevated region of ampulla covered by an epithelium of hair cells
Crista ampullaris
The layer of pericardium composed of parietal and visceral layers
Serous pericardium
Calcitonin - lowers blood calcium levels if too high
PTH (parathyroid hormone) - raises blood calcium levels if too low
If dislodged, this structure can travel through the blood to the organs and can cause heart attacks, strokes, or pulmonary embolisms.
Thrombus
The layer of the eye that houses photoreceptors and associated neurons
Neural layer of the retina
Scala vestibuli and scala tympani are filled with this substance
Perilymph
The entire (general) blood flow circuit starting and ending in the RA
RA - tricuspid valve - RV - pulmonary semilunar valve - pulmonary trunk - pulmonary arteries - pulmonary arterioles - pulmonary capillaries - pulmonary venules - pulmonary veins - LA - mitral valve - LV - aortic semilunar valve - aorta - arterioles - capillaries - venules - veins - IVC/SVC/coronary sinus - RA