Anatomy & Physiology Exam 1 Flashcards
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Questions and Answers

Another word for 'Arm' is:

brachium

A sagittal plane divides your body into _________ sections:

right and left

An abdomen is _______ to the gluteal region and _________ to the cervical region.

ventral, caudal

Which of the following statements about synovial joints is FALSE?

<p>They are stronger than immovable joints</p> Signup and view all the answers

Which joints are considered ball and socket joints?

<p>the shoulder and hip</p> Signup and view all the answers

Movements of the elbow joint around a horizontal axis produces...

<p>pronation</p> Signup and view all the answers

Movement of the hip joint around a vertical axis produces...

<p>lateral rotation</p> Signup and view all the answers

Rotation of the forearm such that the palm faces UP is...

<p>supination</p> Signup and view all the answers

What structure(s) provides primary shock absorption at the knee joint?

<p>menisci</p> Signup and view all the answers

The stronger the joint, the ________ the joint.

<p>more stable and less mobile</p> Signup and view all the answers

The primary component of connective tissue is:

<p>extracellular matrix</p> Signup and view all the answers

All of the following are functions of connective tissue EXCEPT:

<p>Communication</p> Signup and view all the answers

Tendons are composed of what type of connective tissue?

<p>dense regular</p> Signup and view all the answers

The cell type in cartilage that dissolves cartilage matrix is the:

<p>chondroclast</p> Signup and view all the answers

All of the following are characteristics of cartilage EXCEPT:

<p>It can only grow by addition of layers to the periphery</p> Signup and view all the answers

Which type of cartilage is best suited for shock-absorption?

<p>fibrocartilage</p> Signup and view all the answers

Which type of cell produces new bone?

<p>osteoblast</p> Signup and view all the answers

An osteon __________.

<p>All of the above</p> Signup and view all the answers

Concerning endochondral ossification...

<p>It begins with a cartilage model.</p> Signup and view all the answers

Which muscle type is nonstriated, contains a single nucleus and is involuntary (not under conscious control)?

<p>smooth</p> Signup and view all the answers

The nerve's action potential is distributed deep into the muscle fiber by the ______.

<p>myofilaments</p> Signup and view all the answers

Calcium is stored in which muscle cell organelle?

<p>sarcoplasmic reticulum</p> Signup and view all the answers

Which connective tissue wrapping surrounds the whole (entire) muscle?

<p>epimysium</p> Signup and view all the answers

The ______ contains the thick protein filaments.

<p>A band</p> Signup and view all the answers

What is the action of the orbicularis oculi?

<p>closes the eye</p> Signup and view all the answers

The temporalis is a muscle of ________?

<p>mastication</p> Signup and view all the answers

The most superficial abdominal muscle of the group listed below is the _________?

<p>external oblique</p> Signup and view all the answers

The abdominal muscle whose fibers run vertically is the _________.

<p>rectus abdominis</p> Signup and view all the answers

Muscles of the vertebral column _______.

<p>extend</p> Signup and view all the answers

As a posterior trunk muscle, the trapezius can do all of the following, EXCEPT __________.

<p>Protract the scapula</p> Signup and view all the answers

Which of the following best describes what the triceps brachii can do?

<p>Extends the arm and forearm (shoulder &amp; elbow)</p> Signup and view all the answers

Anterior muscles that insert on the carpal bones ______.

<p>flex the wrist</p> Signup and view all the answers

As posterior thigh muscles, the hamstrings _______.

<p>extend the hip and flex the knee joints</p> Signup and view all the answers

Plantar foot muscles _________.

<p>flex the toes</p> Signup and view all the answers

Study Notes

Anatomical Terms

  • The term "brachium" refers to the arm.
  • A sagittal plane divides the body into right and left sections.
  • The abdomen is ventral to the gluteal region and caudal to the cervical region.

Synovial Joints

  • Synovial joints contain a space and are lined with articular cartilage.
  • They can be freely movable and categorized as tri-, bi-, or uni-axial.
  • A false statement about them is that they are stronger than immovable joints.

Joint Movements

  • Elbow joint movement around a horizontal axis is known as pronation.
  • Hip joint movement around a vertical axis results in lateral rotation.
  • Supination refers to the rotation of the forearm where the palm faces up.

Knee Joint Structure

  • Menisci are the primary structures providing shock absorption at the knee joint.
  • A stronger joint is more stable and less mobile.

Connective Tissue

  • The extracellular matrix is the primary component of connective tissue.
  • Functions of connective tissue include support, transport, framework, and storage; communication is not a function.

Cartilage

  • Tendons are made of dense regular connective tissue.
  • Chondroclasts are the cells that dissolve cartilage matrix.
  • Cartilage is solid, avascular, and surrounded by perichondrium; however, it can grow by more than just peripheral addition.
  • Fibrocartilage is best for shock absorption.

Bone Structure

  • Osteoblasts are responsible for producing new bone.
  • An osteon is the basic unit of compact bone, containing blood vessels, concentric lamellae, and osteocytes.
  • Endochondral ossification begins with a cartilage model.

Muscle Tissue

  • Smooth muscle is nonstriated, involuntary, and has a single nucleus.
  • Myofilaments distribute the nerve's action potential deep into muscle fibers.
  • Calcium is stored in the sarcoplasmic reticulum of muscle cells.
  • The entire muscle is surrounded by epimysium.

Muscle Anatomy

  • The "A band" contains the thick protein filaments responsible for striations.
  • The orbicularis oculi muscle functions to close the eye.
  • Temporalis is a muscle involved in mastication (chewing).
  • The most superficial abdominal muscle is the external oblique.
  • The rectus abdominis has vertical fiber orientation and it runs vertically.
  • Muscles of the vertebral column primarily extend the spine.

Posterior Trunk Muscles

  • The trapezius can depress, elevate, or retract the scapula but does not protract it.
  • The triceps brachii muscle extends the arm and forearm at the shoulder and elbow.

Muscle Actions

  • Anterior muscles inserting on carpal bones flex the wrist.
  • The hamstring group extends the hip and flexes the knee joints.
  • Muscles on the plantar foot flex the toes.

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Test your knowledge with these flashcards covering basic concepts of anatomy and physiology. From defining directional terms to understanding joint types, this practice quiz is designed to help reinforce your learning. Perfect for exam preparation or quick review sessions.

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