Hondros BIO 253 Bundled Exams with complete solution

Job of Auditory (Eustachian) tube - maintains equal pressure on both sides of tympanic membrane connects middle ear to throat Are cranial/spinal nerves PNS or CNS? - PNS Tunic layers of Eye - Fibrous outer layer-sclera and cornea Vascula middle layer-pigmented, cont. blood vessels Nervous inner...

Organelles are - Organs of the Urinary system - kidneys, ureters, urinary bladder, urethra draw and label a kidney with the following terms: Cortex, Medulla, Pelvis, renal artery, renal vein, ureter, nephron - functional unit of the kidney - nephron 1 million per kidney! What parts make up t...

anatomy - study of the structure/morphology of the body and parts Physiology - the study of the functions of the human body and parts negative feedback - Most common type of homeostatic mechanism. Effectors return conditions toward normal range, and the deviation point lessens. Ex. BP, temperatur...

2 main types of microorganisms - Prokaryotes ans Eukaryotes Prokaryotes are - Bacteria No nucleus Eukaryotes are - Protozoans and Helminths (fungi & worms) Have nucleus Viruses ( obligate intracellular parasite) - Viruses can only reproduce inside host cells, and they damage the cell when the...

CNS (central nervous system) - brain and spinal cord PNS (peripheral nervous system) - 12 cranial nerves 31 spinal nerves CNS is - Structural and functional PNS is - Outer region of nervous system afferent neurons - sensory to CNS efferent neurons - Motor away from CNS effector examples - Skel...

Homeostatis - Maintain a constant internal enviroment Examples of Homeostatis - Temperature Regulation Regulation of blood carbon dioxide level Regulation of blood glucose level Basic Components of control mechanisms - Sensor Mechanism Intergrating, or control, center Effector mechanism Feedb...