Exam 2: NUR210 / NUR 210 (Latest 2025/ 2026 Update) Principles
of Pharmacology Review| Questions & Answers (Verified
Solutions), 100% Guaranteed Pass – Galen College
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NUR210 / NUR 210 Exam
NUR 210 Principles of Pharmacology Review
Questions & Answers (Verified Solutions
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Galen College
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,Exam 2: NUR210 / NUR 210 (Latest 2025/ 2026 Update) Principles of
Pharmacology Review| Questions & Answers (Verified Solutions),
100% Guaranteed Pass – Galen College
1. What are the three functional classifications of joints?
Synarthrosis, fibrous, diarthrosis
Amphiarthosis, cartilaginous, synovial
Diarthrosis, fibrous, synovial
Synarthrosis, amphiarthosis, diarthrosis
2. Explain how actin and myosin interact during the process of muscle contraction.
Actin and myosin do not interact; they are independent.
Myosin pulls on actin filaments, causing them to shorten and contract the muscle.
Actin pushes myosin to contract the muscle.
Both actin and myosin shorten simultaneously to contract the muscle.
3. Explain how osmosis impacts a cell placed in a hypertonic solution.
The cell will swell due to water influx.
The cell will remain unchanged.
The cell will shrink due to water loss.
The cell will burst due to excessive water intake.
4. What role does troponin play in muscle contraction?
It binds to actin to initiate contraction
It binds calcium ions to trigger a conformational change
It directly interacts with myosin
It provides energy for muscle contraction
5. Explain the primary functions of red and yellow bone marrow in the human body.
Red bone marrow stores fat, while yellow bone marrow produces blood cells
, Red bone marrow produces blood cells, while yellow bone marrow stores fat
Both types of marrow produce blood cells
Both types of marrow are involved in fat storage
6. Explain how the sarcoplasmic reticulum contributes to muscle contraction.
It generates electrical impulses that trigger muscle fibers.
It stores calcium ions and releases them to facilitate muscle contraction.
It provides structural support to muscle fibers.
It transports oxygen to muscle cells.
7. How do the functions of the osteoclasts and osteoblasts differ?
Osteoclasts mature and become osteocytes, whereas osteoblasts become osteoprogenitor
cells.
Osteoclasts dissolve bone matrix, whereas osteoblasts deposit bone matrix into the bones.
Osteoclasts deposit bone matrix into bones, whereas osteoblasts dissolve bone matrix.
8. Explain how arthroses are classified functionally and provide examples of each category.
By the type of connective tissue; examples include fibrous, cartilaginous, and synovial
By the degree of movement; examples include synarthroses, amphiarthroses, and diarthroses
By the location in the body; examples include axial and appendicular joints
By the age of the individual; examples include juvenile and adult joints
9. If a patient has a skin injury that affects the reticular layer of the dermis, what potential complications
might arise from this injury?
Increased sensation and nutrient delivery to the skin
Reduced strength and elasticity of the skin, leading to potential scarring
Enhanced blood flow to the area, promoting healing
Improved collagen production in the epidermis
, 10. If a drug were to inhibit the function of the sarcoplasmic reticulum in muscle cells, what effect would
this likely have on muscle contraction?
Muscle contraction would be enhanced due to increased calcium availability.
Muscle contraction would be impaired due to a lack of calcium release.
Muscle contraction would occur without any changes.
Muscle contraction would become involuntary.
11. Explain the role of myofibrils in the function of skeletal muscle.
They provide structural support to the muscle fibers
They are responsible for the contraction of muscle fibers
They store energy for muscle contraction
They facilitate communication between muscle fibers
12. What is the primary energy source required for muscle contraction?
Glucose
Creatine phosphate
ATP
Lactic acid
13. If a new type of epithelial tissue is discovered that is stratified and cuboidal, what potential functions
might this tissue serve in the body based on its classification?
It may primarily function in gas exchange.
It could be involved in secretion and protection in glandular tissues.
It would likely be responsible for nutrient absorption in the intestines.
It may serve as a barrier against mechanical stress in the skin.
14. If a patient has a condition that affects the stability of their skull sutures, which type of joint is likely
impacted, and what implications might this have for their overall health?
Synovial joints, leading to increased mobility and potential dislocation.
Cartilaginous joints, resulting in reduced flexibility and pain.
Fibrous joints, potentially causing instability and increased risk of injury.
Hinge joints, affecting the ability to perform basic movements.