Anatomical Terminology

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Questions and Answers

Which of the following best describes the role of terminology in anatomy?

  • It allows for effective communication and avoids vague descriptions. (correct)
  • It is only important for academics and researchers.
  • It is used to confuse students learning anatomy.
  • It provides general guidelines and expectations.

What does the term 'homeostasis' refer to?

  • The body's ability to remain in a constant state, resisting change. (correct)
  • The body's mechanism to create an internal environment.
  • The body's constant and extreme fluctuation to adapt to changing needs.
  • The body's gradual decline in function with age.

What is the primary purpose of regulatory mechanisms in maintaining homeostasis?

  • To ensure that controlled variables stay within their normal set-point range. (correct)
  • To ensure that the body always reaches the maximum possible level.
  • To maintain the external environment conditions.
  • To allow controlled variables to move freely outside their normal range.

The body responds to rising body temperature through vasodilation and sweating. Which homeostatic mechanism does this represent?

<p>Feedback (C)</p> Signup and view all the answers

What position is a person in when they are in the 'anatomical position'?

<p>Standing upright with feet together, face and palms forward. (A)</p> Signup and view all the answers

In anatomical terms, what is the opposite of 'anterior'?

<p>Posterior (A)</p> Signup and view all the answers

Which of the following describes a structure that is 'superior' to another?

<p>It is closer to the head. (A)</p> Signup and view all the answers

In anatomical terms, if the elbow is described as proximal to the wrist, what does this mean?

<p>The elbow is closer to the attachment point to the body than the wrist. (C)</p> Signup and view all the answers

What does it mean if the skin is described as superficial to the muscle?

<p>The skin is closer to the surface than the muscle. (C)</p> Signup and view all the answers

What does the sagittal plane divide the body into?

<p>Left and right parts (B)</p> Signup and view all the answers

Which plane divides the body into anterior and posterior sections?

<p>Coronal (C)</p> Signup and view all the answers

A transverse plane divides the body into which sections?

<p>Superior and inferior (B)</p> Signup and view all the answers

In which plane does flexion and extension primarily occur?

<p>Sagittal plane (C)</p> Signup and view all the answers

What movement decreases the angle between articulating bones?

<p>Flexion (C)</p> Signup and view all the answers

What is the movement called when the toes are pulled up towards the face?

<p>Dorsiflexion (B)</p> Signup and view all the answers

What movement moves a limb away from the midline of the body?

<p>Abduction (C)</p> Signup and view all the answers

If a person turns the sole of their foot inward, what is this movement called?

<p>Inversion (A)</p> Signup and view all the answers

Which movement combines flexion, abduction, extension, and adduction in a circular motion?

<p>Circumduction (C)</p> Signup and view all the answers

Motion around the long axis of a joint is called?

<p>Rotation (C)</p> Signup and view all the answers

What is the term for rotating the forearm so that the palm faces posteriorly?

<p>Pronation (B)</p> Signup and view all the answers

Which term indicates a structure that is located away from the midline?

<p>Lateral (B)</p> Signup and view all the answers

When the body shivers in response to a drop in temperature, what type of homeostatic mechanism is at play?

<p>Feedback (C)</p> Signup and view all the answers

Which directional term refers to something being closer to the point of attachment or origin?

<p>Proximal (C)</p> Signup and view all the answers

Which anatomical plane would show the brain and spinal cord in one continuous image?

<p>Sagittal plane (A)</p> Signup and view all the answers

Which foot movement involves turning the sole of the foot outwards?

<p>Eversion (D)</p> Signup and view all the answers

In the anatomical position, which direction do the palms face?

<p>Anteriorly (B)</p> Signup and view all the answers

What is the term for a homeostatic mechanism that anticipates a change and minimizes its effect?

<p>Feedforward (B)</p> Signup and view all the answers

Which term refers to a position closer to the surface of the body?

<p>Superficial (D)</p> Signup and view all the answers

Which of the following movements occurs in the coronal plane?

<p>Abduction (D)</p> Signup and view all the answers

Which directional term best describes the relationship of the nose to the eyes?

<p>The nose is medial to the eyes. (C)</p> Signup and view all the answers

Considering anatomical terminology, which is the correct way to describe the relationship between the knee and the ankle?

<p>The knee is proximal to the ankle. (D)</p> Signup and view all the answers

If a doctor orders a transverse section of the abdomen, what type of view will the resulting image show?

<p>A top and bottom view. (B)</p> Signup and view all the answers

Which type of movement is predominately involved when shaking your head 'no'?

<p>Rotation (B)</p> Signup and view all the answers

In which of the following scenarios is the body employing a feedforward mechanism to maintain homeostasis?

<p>Putting on a jacket before going outside in cold weather. (B)</p> Signup and view all the answers

The radius is lateral in anatomical position to the ulna. If the hand is pronated, what is the positioning of the radius and ulna?

<p>The radius crosses over the ulna (C)</p> Signup and view all the answers

A doctor tells a patient that a lesion is distal to their shoulder. Where is the lesion located?

<p>Farther away from the patient's trunk than their shoulder. (A)</p> Signup and view all the answers

A physical therapist is helping a patient regain movement in their lower limbs. Which movement would involve motion in the sagittal plane?

<p>Bending/Straightening the knee (flexion/extension). (D)</p> Signup and view all the answers

If a surgeon needs to view both the heart and the lungs in a single section, which plane would be most suitable?

<p>Coronal plane (A)</p> Signup and view all the answers

A person is performing a bicep curl, where they bend their elbow to bring their hand closer to their shoulder. What movement is occurring at the elbow joint?

<p>Flexion (C)</p> Signup and view all the answers

During a physical examination, a doctor asks a patient to turn their palm upward. Which movement is the patient performing?

<p>Supination (B)</p> Signup and view all the answers

Which homeostatic mechanism is demonstrated when blood vessels constrict in response to a decrease in body temperature?

<p>Vasoconstriction, a feedback mechanism to conserve heat. (B)</p> Signup and view all the answers

Flashcards

What is homeostasis?

The maintenance of stable internal conditions in the body.

What is feedback in homeostasis?

When a controlled variable moves too far, the body attempts to bring it back to normal.

What is feedforward in homeostasis?

Anticipating changes in a controlled variable and minimizing their effect.

What is the Anatomical Position?

Standing upright, facing forward, feet together, palms facing forward.

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What does 'Anterior' mean?

Towards the front of the body.

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What does 'Posterior' mean?

Towards the back of the body.

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What does 'Superior' mean?

Closer to the head or above.

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What does 'Inferior' mean?

Closer to the feet or below.

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What does 'Medial' mean?

Closer to the midline of the body.

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What does 'Lateral' mean?

Away from the midline of the body.

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What does 'Proximal' mean?

Closer to the trunk of the body.

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What does 'Distal' mean?

Farther from the trunk of the body.

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What does 'Deep' mean?

Farther from the surface.

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What does 'Superficial' mean?

Closer to the surface.

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What is a Sagittal plane?

Divides the body into left and right sections.

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What is a Coronal plane?

Divides the body into front and back sections.

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What is a Transverse plane?

Divides the body into top and bottom sections.

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What is Flexion?

Movement in the sagittal plane that decreases the angle between body parts; bringing fleshy parts closer together.

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What is Extension?

Movement in the sagittal plane that increases the angle between body parts.

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What is Dorsiflexion?

Foot movement where the toes are brought up towards the face.

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What is Plantarflexion?

Foot movement where the toes are pointing towards the ground.

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What is Abduction?

Movement in the coronal plane.

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What is Adduction?

Movement in the coronal plane that moves a limb towards the midline.

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What is Inversion?

Foot movement where the sole of the foot faces towards the midline.

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What is Eversion?

Foot movement where the sole of the foot turns away from the midline.

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What is Circumduction?

Combination of flexion, abduction, extension, and adduction.

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What is Rotation?

Movement around the long axis of a joint.

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What is Lateral (External) Rotation?

Rotation that turns the anterior surface laterally.

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What is Medial (Internal) Rotation?

Rotation when the anterior surface turns medially.

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What is Pronation?

Movement where the palm faces posterior.

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What is Supination?

Movement where the palm faces anterior.

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Study Notes

  • This pre-lecture material assists with note-taking and preparation, but is not a substitute for attending the lecture.

Terminology

  • Effective communication avoids vague descriptions and directions.
  • Look up unfamiliar words and research their etymology (origin).

Homeostasis

  • Homeostasis maintains stable internal conditions necessary for the body's systems' proper function.
  • Regulatory mechanisms keep controlled variables within a normal set-point range to maintain homeostasis.
  • Controlled variables include temperature, ion concentrations (calcium, potassium, sodium), blood sugar levels, and fluid balance.
  • Feedback occurs when body responses counteract deviations of a controlled variable from its set point.
  • Feedforward is the anticipation of an event that will alter a controlled variable minimizes effects.

Anatomical Terminology

  • Specific terminology refers to body parts, directions, and movements.
  • Anatomical position includes being upright, facing forward, feet together, and palms facing forward.
  • The anatomical position remains the same regardless of movement.

Terms of Direction

  • Terms of direction describe body parts in relation to one another:
    • Anterior: front
    • Posterior: back
    • Cranial or Cephalic: toward the head
    • Caudal: toward the tail or feet
    • Superior: above
    • Inferior: below
    • Medial: toward the midline
    • Lateral: away from the midline
    • Proximal: closer to the point of attachment or origin
    • Distal: further from the point of attachment or origin
    • Deep: further from the surface
    • Superficial: closer to the surface

Planes of Division

  • Sagittal plane divides the body into left and right, including the midsagittal or median plane dividing into mirror images.
  • Coronal plane divides the body into front and back sections.
  • Transverse plane divides the body into top and bottom sections.

Movement Terminology

  • The sagittal plane involves back and forward movement.
  • The coronal plane involves side-to-side movements.
  • The transverse plane involves rotational movements.
  • Flexion decreases the angle, flexion increases the angle between body parts.
    • In feet, dorsiflexion brings toes up towards the face, and plantarflexion points toes towards the ground.
  • Abduction moves a limb away from the midline at a joint, while adduction moves it towards the midline.
    • In feet, inversion has the sole facing towards the midline, eversion has it turning away.
  • Circumduction combines flexion, abduction, extension, and adduction.
  • Rotation occurs around the long axis of a joint.
    • Lateral rotation is external, medial rotation is internal.
    • Pronation has the palm facing posterior.
    • Supination has the palm facing anterior, with forearm bones parallel.

Main concepts for HUBS 191

  • Homeostasis maintains normal set points of bodily functions.
  • Anatomical position is a defined reference point for anatomy.
  • The body can be sectioned in different planes.
  • Anatomical location is described in relation to other structures.
  • Movement of the body is defined based on specific terminology.

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