Anatomy and Physiology

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Questions and Answers

Which process relies on membrane proteins that bind selectively to a specific molecule, causing a conformational change that allows the molecule to move across the plasma membrane?

  • Osmosis
  • Facilitated diffusion (correct)
  • Simple diffusion
  • Active transport

What is the role of the lymphatic system in maintaining fluid balance within the body?

  • To return excess interstitial fluid and leaked plasma proteins back to the bloodstream. (correct)
  • To regulate blood pressure by absorbing excess fluid from tissues.
  • To filter waste products from the bloodstream.
  • To transport oxygen and nutrients to cells.

If someone has blood type O negative, which blood types can they receive in a transfusion?

  • Only O negative (correct)
  • AB and B
  • A, B, AB, O
  • A and O

During which phase of mitosis do sister chromatids separate and move toward opposite poles of the cell?

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

What is the primary function of erythrocytes?

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

Which structure within a cell is primarily responsible for generating ATP through cellular respiration?

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

What part of the heart is primarily responsible for initiating the electrical impulses that trigger each heartbeat?

<p>Sinoatrial (SA) node (C)</p> Signup and view all the answers

In the context of the eye, what is the function of the cone cells?

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

What is the role of neurotransmitters in a synapse?

<p>To transmit signals from one neuron to another. (B)</p> Signup and view all the answers

Which of the following best describes the function of the vertebral column?

<p>To protect the spinal cord and support the body's weight. (B)</p> Signup and view all the answers

Flashcards

Anatomy & Physiology

The study of the structure (anatomy) and function (physiology) of the body.

Neurotransmitters

Chemical messengers that transmit signals across a synapse from one neuron to another.

Universal Donor

A person with type O negative blood, which can be transfused to almost anyone.

Synapse

A junction between two nerve cells, where signals pass via neurotransmitters.

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Rh Factor

A protein on red blood cells; its presence determines Rh-positive blood type.

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Lymphatic System Functions

Transport excess fluid, absorb fats, and immune defense.

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Pigment in Rod and Cone Cells

Rods contain Rhodopsin, cones contain photopsin.

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Bones in the Ear

Malleus, incus, and stapes.

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Cardiac Output

The volume of blood pumped by the heart per minute.

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Powerhouse of the Cell

Mitochondria, which produce energy (ATP) for cell functions.

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Study Notes

Section A

  • Anatomy is the study of the structure of the body.
  • Physiology is the study of the function of the body.
  • Neurotransmitters are chemical messengers that transmit signals across a chemical synapse, such as Acetylcholine and Norepinephrine.
  • The universal blood donor is O negative.
  • A synapse is a junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter.
  • The Rh factor, also known as the Rhesus factor, is an inherited protein found on the surface of red blood cells, where Rh positive blood has the protein, and Rh negative blood lacks the protein.
  • The main functions of the lymphatic system include maintaining fluid balance and immunity.
  • The pigment present in rod cells is rhodopsin and the pigment present in cone cells is cone photopigments.
  • The bones present in the ear are the malleus, incus, and stapes.
  • Cardiac output is the volume of blood pumped by the heart per minute.
  • The powerhouse of the cell is the mitochondrion.

Section B

  • Draw a well-labeled diagram of the plasma membrane and explain transport mechanisms across the plasma membrane.
  • Classify the skeletal system and discuss the structure and function of the vertebral column.
  • Define blood coagulation and describe in detail the different stages involved in blood coagulation.

Section C

  • Explain the anatomy of the heart with a well-labeled diagram.
  • Explain the physiology of hearing in detail.
  • Write a note on blood groups and explain erythroblastosis fetalis.
  • Discuss the anatomy and physiology of the lymph node.
  • Draw a well-labeled diagram of a cell and its function.
  • Write a short note on mitosis.
  • Describe the basic anatomy of the eye with the help of a diagram.

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