FINAL BIOL 251 A&P QUESTIONS WITH COMPLETE SOLUTIONS WELL ELABORATED!!! UPDATED 2025/2026

FINAL BIOL 251 A&P QUESTIONS WITH
COMPLETE SOLUTIONS WELL
ELABORATED!!! UPDATED 2025/2026
Pseudostratified Ciliated Columnar
Answer: ✔✔ This tissue produces mucus and moves it through the airways


Epithelial, Connective, Nervous, Muscular
Answer: ✔✔ What are the four major types of adult tissues in the body?


Build: -blast; Maintain: -cyte
Answer: ✔✔ What are the cells that build tissues and the cells that maintain
tissues?


Polarized
Answer: ✔✔ If a membrane has a resting potential of -70 mV, it is considered
polarized


Sodium
Answer: ✔✔ During membrane repolarization, the membrane's permeability to
which ion decreases?
Answer: ✔✔ Sodium


Actin & Myosin
Answer: ✔✔ What are the two contractile proteins involved in muscle contraction?


Loose, Dense, Cartilage, Bone, Blood
Answer: ✔✔ The five major categories of adult connective tissues

,Flexor (withdrawal) reflex -ANSWER✔✔What is the reflex used for protecting a
body part by pulling away from a harmful stimulus. It is polysynaptic and
ipsilateral.


Keratinocytes -ANSWER✔✔What epidermal cells is used for protection of the
skin and releases lipids


Potassium -ANSWER✔✔At rest, a cell will have more ________ ions in the
cytoplasm than outside the cell.


A. Sodium
B. Chloride
C. Potassium
D. Calcium


Skeletal muscles -ANSWER✔✔Somatic nervous system synapses with


Pacinian corpuscle -ANSWER✔✔What cell detects deep pressure in the
integumentary system and is usually found in the hypodermis ?


A. Meissner corpuscle
B. Pacinian corpuscle
C. Merkle cell
D. Free nerve endings


Pain and thermal -ANSWER✔✔What can free nerve endings detect?

,Meissner corpuscle -ANSWER✔✔What cell detects light touch in the
integumentary system and is found in the dermis?


In the epidermis -ANSWER✔✔Where are Merkel cells found?


Ectoderm mesoderm endoderm -ANSWER✔✔What are three types of germ tissue


1. ATP hydrolysis
2. Cross bridge formation
3. Power stroke
4. Detachment of myosin from actin -ANSWER✔✔What are the steps in the
contraction cycle?


Calcitriol -ANSWER✔✔What can increase blood calcium levels by increasing
calcium absorption from the G.I. tract?


Serous, mucus, synovial, cutaneous -ANSWER✔✔What are four different
membranes?


Serous membrane -ANSWER✔✔A thin, slippery, double layered membrane that
covers the viscera within the thoracic and abdominal cavities and also lines the
wall of the thorax and abdomen


The parietal layer and visceral layer -ANSWER✔✔What are the two parts of
serous membrane

, Parietal layer of the serous membrane -ANSWER✔✔A thin epithelium that lines
the wall of the cavities


Visceral layer of the serous membrane -ANSWER✔✔A thin epithelium that
covers and adheres to the organs or viscera within of cavities


The pleura -ANSWER✔✔What is the serous membrane of the pleural cavity's


The pericardium -ANSWER✔✔What is the serous membrane of the pericardial
cavity


the peritoneum -ANSWER✔✔What is the serous membrane of the abdominal
cavity


G.I. tract, mouth, respiratory (they open to the outside) -ANSWER✔✔Where are
mucous membranes found?


Skin -ANSWER✔✔Where is cutaneous membrane's found?


Joints -ANSWER✔✔Where are synovial membrane's found?


Feedback cycle -ANSWER✔✔Which series of events help to regulate one's
internal environment?


A. Control cycle
B. Feedback cycle