Quiz 3

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Questions and Answers

Lymph is circulated by

  • Gravity and skeletal muscle contraction
  • Contraction of adjacent muscles and the pulsation of large arteries (correct)
  • The beating of the heart and gravity
  • Changes in thoracic pressure (correct)

Lymphatic capillaries are

  • Equipped with valves
  • Blind ended (correct)
  • In direct communication with blood capillaries
  • Thick-walled

Lymphatics contain lymph nodes located at certain intervals along their course

True (A)

Lymphatics have thinner walls than large veins

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

Mucosa-associated lymphoid tissue are associated with the

<p>Respiratory tract (C), Gastrointestinal tract (D)</p> Signup and view all the answers

What happens in the lymph nodes as lymph flows through them

<p>Reticular fibres filter debris (A), Plasma and mature T cells are added (C), Foreign substances are destroyed (D)</p> Signup and view all the answers

Which best describes a lymph node

<p>A capsule in the lymph vessel that is filled with B cells and T cells (D)</p> Signup and view all the answers

Which of the following is NOT a function of the lymphatic system

<p>Filtering metabolic wastes (B)</p> Signup and view all the answers

Which of the following is NOT part of the lymphatic system

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

How long is the spinal cord?

<p>45cm (C)</p> Signup and view all the answers

How many pairs of cranial nerves are there?

<p>12 (D)</p> Signup and view all the answers

What are the key features of neurones?

<p>Axon (B), Schwann cells (C), Dendrites (D)</p> Signup and view all the answers

What is the largest part of the brain called?

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

Which of the following are properties of neurones?

<p>Irritability (B), Conductivity (D)</p> Signup and view all the answers

Aldosterone increases the reabsorption of sodium

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

Antidiuretic hormone decreases water reabsorption

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

Calcitonin lowers blood calcium

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

Parathormone raises blood calcium

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

The kidney contains 1-2 thousand nephrons

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

The urinary system is one of the excretory systems of the body

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

What does NOT take place in the glomerulus capsule as blood flows through it?

<p>Foreign substances are destroyed (B)</p> Signup and view all the answers

Which of the following does glomerular filtrate NOT include?

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

Which of the following is not a function of the kidneys

<p>Production of white blood cells (C)</p> Signup and view all the answers

Which of the following is NOT a part of the urinary system?

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

Which of the following is not correct when describing a nephron?

<p>The capsule walls are lined with ciliated epithelium (B)</p> Signup and view all the answers

Which of the following processes is NOT involved in the formation of urine?

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

The Olfactory Receptors are located in the nasal cavity embedded in the olfactory bone

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

The tragus in the ear plays a part in directing the sounds into the inner ear

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

What are the cilia in the nasal cavity?

<p>Small nasal hairs within the nose (A)</p> Signup and view all the answers

What cranial nerve supplies the ear?

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

What function does the pupil play in the eye?

<p>Controls the amount of light into the eye (A)</p> Signup and view all the answers

What is the importance of having tears?

<p>Prevents dryness of eyes /protection of external irritants/ foreign bodies are washed away by tears /oxygen and nutrients are transported to the surface cells (A)</p> Signup and view all the answers

Where are the bitter taste receptors found?

<p>The back of the tongue (B)</p> Signup and view all the answers

What 5 taste receptors are present in the mouth?

<p>Sweet, Salty, Bitter, Sour, Umami</p> Signup and view all the answers

What are the four layers of the skin?

<p>Subcutaneous Hypodermis Derma Eipdermis</p> Signup and view all the answers

Where are Olfactory Receptors located?

<p>In the nasal cavity embedded in the olfactory epithelium</p> Signup and view all the answers

Flashcards

How is lymph circulated?

Circulation of lymph is facilitated by the contraction of adjacent muscles and the pulsation of large arteries.

Lymphatic capillaries

Lymphatic capillaries are closed at one end, unlike blood capillaries which form a continuous loop.

Lymph node filtration

Lymph nodes filter debris from lymph as it flows through them, using reticular fibres.

Lymph node description

Lymph nodes are encapsulated structures within lymph vessels, filled with B cells and T cells.

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NOT a lymphatic system function

Filtering metabolic wastes is NOT a function of the lymphatic system.

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NOT part of the lymphatic system

The liver is NOT a part of the lymphatic system.

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Key Neuron Feature

A key feature of neurons is the axon, which transmits electrical signals.

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Largest part of the brain

The cerebrum is the largest part of the brain, responsible for higher-level functions.

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Neuron Property

Irritability is a property of neurons, referring to their ability to respond to stimuli.

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Aldosterone function

Aldosterone increases the reabsorption of sodium in the kidneys, leading to increased water retention.

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Calcitonin function

Calcitonin lowers blood calcium levels by promoting calcium deposition in bones.

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Parathormone function

Parathormone raises blood calcium levels by stimulating calcium release from bones.

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Urinary system function

The urinary system includes the kidneys, ureters, bladder, and urethra, and is responsible for waste removal.

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NOT in Glomerular Filtrate

Blood cells are NOT included in the glomerular filtrate.

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NOT a kidney function

Production of white blood cells is NOT a function of the kidneys; it's primarily done by bone marrow.

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NOT part of the urinary system

The adrenal gland is NOT a part of the urinary system. It is part of the endocrine system.

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Nephron Description

The capsule walls of the nephron are NOT lined with ciliated epithelium.

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NOT involved in urine formation

Chemical digestion is NOT involved in the formation of urine; urine formation involves filtration, reabsorption, and secretion.

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Cilia Function

The cilia in the nasal cavity help move mucus and trapped particles out of the nasal passages.

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Cranial Nerve for Ear

The auditory nerve (cranial nerve VIII) supplies the ear, transmitting auditory and balance information.

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Pupil Function

The pupil controls the amount of light entering the eye by changing its size.

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Importance of Tears

Tears prevent dryness, protect from irritants, wash away foreign bodies, and transport oxygen and nutrients to surface cells of the eye.

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Bitter Taste Location

Bitter taste receptors are primarily found at the back of the tongue.

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Taste Receptor

The five basic taste receptors are sweet, salty, bitter, sour, and umami.

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Layers of Skin

The primary layers of the skin are the epidermis, dermis, and hypodermis.

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Olfactory Receptors Location

Olfactory receptors are located in the nasal cavity, embedded in the olfactory epithelium.

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