BIOS251/ BIOS 251 Exam 1: Anatomy and Physiology I Review (Latest 2025/ 2026 Update) | Qs & As| Grade A| 100% Correct (Verified Answers)- Chamberlain

BIOS251/l BIOSl 251l Examl 1:l Anatomyl
andl Physiologyl Il Reviewl (Latestl 2025/l
2026l Update)l |l Qsl &l As|l Gradel A|l
100%l Correctl (Verifiedl Answers)-l
Chamberlain

QUESTION
Cervicall Plexus


Answer:
C1l -l C5;l servesl headl andl neckl areal (upperl limbsl (incomingl sensoryl signalsl andl
outgoingl motorl signals)l -Phrenicl nervel (C3-C5)l -Rootsl andl nerves




QUESTION
Brachiall Plexus


Answer:
C5l -l T1;l Nervesl tol thel upperl limb,l neck,l andl shoulderl musclesl -Roots,l trunks,l
divisions,l cords,l andl branchesl (Riskl takersl don'tl cautiouslyl behave)l -l Radial,l median,l
andl ulnarl nerves




QUESTION
Lumbarl Plexus


Answer:
L1l -l L5;l Nervesl tol abdominall wall,l genitals,l andl lowerl limbl -Rootsl andl divisionsl -l
Laterall cutaneousl nervel andl femorall nerve

,QUESTION
Sacrall andl Coccygeall Plexuses


Answer:
L5l -l S5;l nervesl tol thel buttock,l perineum,l andl lowerl limbl -Rootsl andl divisionsl -Sciaticl
nervel (Tibiall andl Commonl Fibular)




QUESTION
Epineurium


Answer:
Densel connectivel tissuel surroundingl al spinall nerve




QUESTION
Myotomes


Answer:
specificl musclel groupsl innervatedl byl specificl levelsl ofl spinall nerves




QUESTION
Dermatomes


Answer:
specificl patchesl ofl skinl innervatedl byl specificl levelsl ofl thel spinall column




QUESTION
Reflex

, Answer:
Al fast,l involuntaryl andl predictablel sequencel ofl eventsl thatl functionl inl anl arcl (Reflexl
Arc)




QUESTION
Componentsl ofl thel reflexl arc


Answer:
Sensoryl receptor,l sensoryl neuron,l interneuron,l motorl neuron,l effector




QUESTION
Ipsilateral


Answer:
onl thel samel sidel ofl thel body




QUESTION
Contralateral


Answer:
onl thel oppositel sidel ofl thel body




QUESTION
Monosynaptic


Answer:
onel synapse