100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Hondros Bio 254 Exam 2 With 100% Correct And Verified Answers 2024 $13.49   Add to cart

Exam (elaborations)

Hondros Bio 254 Exam 2 With 100% Correct And Verified Answers 2024

 58 views  3 purchases
  • Course
  • Hondros Bio 254
  • Institution
  • Hondros Bio 254

Hondros Bio 254 Exam 2 With 100% Correct And Verified Answers 2024

Preview 2 out of 6  pages

  • March 19, 2024
  • 6
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • Hondros Bio 254
  • Hondros Bio 254
avatar-seller
Vendarsol
Hondros Bio 254 Exam 2 With 100%
Correct And Verified Answers 2024
Function of Osteoclasts - Correct Answer-Chew up bone, secretes an acidic substance
that dissolves "chews" up bones

Three layers of muscle - Correct Answer-Epimysium, Perimysium, Endomysium

Fascicle - Correct Answer-bundle of muscle fibers

myofibril is made up of - Correct Answer-myofilaments

Myofilaments - Correct Answer-The contractile proteins, Actin and Myosin, of muscle
cells

Origin - Correct Answer-Attachment of a muscle that remains relatively fixed during
muscular contraction

Insertion - Correct Answer-Point of attachment that moves when the muscle contracts

Prime Mover - Correct Answer-The muscle that acts as the initial and main source of
motive power.

Antagonist - Correct Answer-Performs the opposite of action

Lever system components - Correct Answer-Lever, Effort, Load

Muscles - Correct Answer-Moves skeleton & Substances.
Heat Production

Posture - Correct Answer-Are always contracting, unless we are lying down.

Characteristics of Skeletal of Muscle cells - Correct Answer-Excitability, Contractility,
Extensibility

Excitability (irritability) - Correct Answer-Ability to be stimulated

Contractility - Correct Answer-Ability to contract, or shorten & produce body movement

Extensibility - Correct Answer-Ability to extend, or stretch, thereby allowing muscles to
return to the their resting place length

Sarcolemma - Correct Answer-Plasma membrane of the muscle fibers

, Where does excitation of muscle occur? - Correct Answer-NMJ (neuromuscular
junction)

Excitation of Muscle part 1 - Correct Answer-In response to a Action Potential (AP) a
motor neuron releases Acetylcholine. The Acetylcholine crosses the synaptic cleft and
binds to receptors on the plasma lemma.

Excitation of Muscle part 2 - Correct Answer-The AP triggers the release of Calcium
from the Sarcoplasmic Reticulum (SR), which in turns causes sodium to rush into the
sarcoplasm which causes depolarization. The AP travels up through the T-tubules
(transverse tubules).

Muscle Plasma Membrane - Correct Answer-Sarcolemma

Muscle Cell Cytoplasm - Correct Answer-Sarcoplasm

Acetylcholinesterase (AChE) - Correct Answer-the enzyme that breaks down
acetylcholine in the synaptic cleft

Epiphysis - Correct Answer-End of a long bone

Homeostasis of the calcium ion concentration is essential for: - Correct Answer-*Bone
formation, remodeling, and repair
*Blood clotting
*Transmission of nerve impulses
*Maintenance of skeletal and cardiac muscle contraction

Parathyroid hormone - Correct Answer-Stimulates OSTeoClasts to breakdown bone
matrix and increase blood calcium levels

Calcitonin - Correct Answer-Protein hormone produced in the thyroid gland
Produced in response to high blood calcium levels
Stimulates bone deposition by OSTeoBlasts
Inhibits osteoclast activity

Osteoblast - Correct Answer-bone-forming cell

Osteoblast get trapped in? - Correct Answer-Collagenous fibers become embedded in
the ground substance and constitute the bone matrix

Osteocytes - Correct Answer-mature bone cells found in lacunae

Osteoclasts - Correct Answer-Bone-destroying cells

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Vendarsol. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

72042 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$13.49  3x  sold
  • (0)
  Add to cart