TTU ZOOL 2403 EXAM 3 COMPREHENSIVE REVIEW QUESTIONS AND ANSWERS VERIFIED SET

TTU ZOOL 2403 EXAM 3 COMPREHENSIVE
REVIEW QUESTIONS AND ANSWERS
VERIFIED SET

●● the endocrine and nervous system share many _______ messengers
Answer: chemical


●● -Very close to target
-Fast & short
-localized
Answer: Nervous system


●● -Far from target
-Slower & lasts longer
-Systemic
Answer: endocrine system


●● Nervous system releases _______ at a _______.
Answer: Neurotransmitters, synapse


●● Endocrine system releases ________ into connective tissue.

,Answer: hormones


●● Secretory units composed of epithelial cells
Answer: endocrine glands


●● Response of effector negates stimulus & restores normal function
Answer: negative feedback


●● Bronchioles give rise to ______.
Answer: alveoli


●● Where gas exchange takes place
Answer: alveoli


●● Make up most of lungs
Answer: alveoli


●● Give lungs spongy quality
Answer: alveoli


●● 500 million ______ per lung
Answer: alveoli

,●● the alveoli epithelial lining is composed of:
Answer: simple squamous, type I cells, type II cells


●● responsible for O2 & CO2 exchange
Answer: type I cells


●● produce surfactant
Answer: type II cells


●● surface coats ______ surfaces
Answer: alveolar


●● reduces surface tension
Answer: surfactant


●● If surface tension too high, ______ collapse
Answer: alveoli


●● Difficult respiration in babies due to alveolar collapse
Answer: respiratory distress syndrome

, ●● Caused when type II cells don't produce enough surfactant
Answer: respiratory distress syndrome


●● _________ is not synthesized until 8 months fetal development
Answer: surfactant


●● The alveoli connective tissue layer contains:
Answer: Capillaries
Elastic fibers
No more smooth muscle


●● Alveolar walls become inflamed
Alveoli become full of fluid
O2 from air can't reach bloodstream
Wheezing on inhalation
Answer: pneumonia


●● From knife wound, broken rib, spontaneous
Answer: Pneumothorax


●● Air enters pleural sac
Answer: Pneumothorax