PHARYNX

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PHARYNX
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PHARYNX

• Plays a part in both digestive system and
  respiratory system.

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PHARYNX

• Connects Nasal Cavity to the larynx and
  esophagus.

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LARYNX

• Also known as the voice box
• Contains the Adams apple
• Contains vocal cords.

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LARYNX

• Glottis Narrow opening allowing air to enter
  from pharynx.

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LARYNX

• Glottis Protected by voice box (larynx)

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LARYNX

• When swallowing, the glottis is covered by the
  epiglottis. Preventing food and liquid to enter
  lungs.

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LARYNX

• VOCAL CORDS Elastic ligaments that vibrate when
  air passes through the glottis.

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Vocal Cords

• Sound determined by length, size and tension.

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VOCAL CORDS

• 1. Short, high tension, thin ligaments vibrate
  rapidly producing a high pitched sound.

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VOCAL CORDS

• Females and young boys generally have these
  shorter ligaments.

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VOCAL CORDS

• 2. Large, lower tension, long strands vibrate
  slower creating a low-pitched sound.

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VOCAL CORDS

• Generally males have larger vocal cords then
  females.

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VOCAL CORDS
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GAME TIME

• What is wrong with the following Voice Boxes
  (Larynxs)?

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Question 1

• Fish Bone Stuck in Voice Box (Larynx)  Foreign
  bodies lodged in the larynx is a medical
  emergency.  The patient has extreme discomfort
  and airway compromise from laryngeal obstruction
  or spasm may occur.

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Question 2

• Vocal Cord Leukoplakia  This is a condition
  caused by chronic irritation which results in
  abnormal growth of the top layer of the skin
  lining the vocal cords.   It is often seen in
  smokers and is considered a pre-cancerous
  condition.

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Question 3
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Question 4
?
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Cough Reflex

• Involuntary, receptors in glottis respond to
  particles, liquids and poisons.

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COUGH REFLEX

• THEN the abdominal, rib muscles, and diaphragm
  contract quickly.

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Heimlich Maneuver

• Compression of the diaphragm produces air
  pressure to dislodge the blockage.

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Laryngitis

• Inflammation of the vocal cords and/or larynx.
• Can cause lower pitch, hoarseness and even loss
  of voice.

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Why?

• Why do boys voices sometimes break at the time
  of puberty?

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TRACHEA
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TRACHEA

• Also known as the wind pipe.
• Connects the Larynx to the Bronchi

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TRACHEA

• Roughly about 2.5 cm in diameter and about 11 cm
  in length.

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TRACHEA

• Cartilage rings C-shaped rings that protect the
  trachea.
• About 20 rings.

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TRACHEA

• Cartilage rings Prevent airway from collapsing.
• Openings face are posterior to allow esophagus to
  expand.

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Trachea

• Tracheotomy Incision made into the trachea and a
  tube is inserted. Air allowed directly into the
  trachea.

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TRACHEA

• WHY do smokers cough?

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PRIMARY BRONCHI

• Two large divisions into each lung.

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Primary Bronchi

• Right Bronchus is larger in diameter and steeper.

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COLOR CODE

• COLOR CODE the lower respiratory tract, letters
  H, I, J, M