Upper Resp. System + Neck

Question 1

What does the respiratory system consist of?

Answer 1

→ upper:
Nose (nasal cavity and paradisal sinuses)
Pharynx

→ lower:
Laynx
Trachea
Branchi
Lungs

Question 2

Conducting system:

Answer 2

Transport of air, filer, warm, moisten

Question 3

Respiratory portion

Answer 3

Gas exchange between air and blood

Question 4

Functions of the nose and what Is IT divided into

Answer 4

3 function:
→ warming, moistering+ filtering inhaled air
→ detecting smell
→ modifying speech+ sounds through resonance

Often divided into:
External-nose
Internal- nasal cavity.

Question 5

What is the external nose?
What bones make it up?

Answer 5

Muscle and skin supported by bone/hyaline cartilage framework
Lined internally with mucous membrane
Ext-opening- nares

Bones:
Paired nasal bones (bridge)
Frontal bone (root)
Maxilla

Question 6

Hyaline cartilage in the external nose

Answer 6

→ septal cartilage (midline)
→ lateral processes of septal cartilage
→ alar cartilages (form flared rim of nares)

Shape of nose dependent on cartilage structure

Question 7

What is the nasal cavity?
What Is IT separated from?

Answer 7

Pained spaces either side of midline
→ wedge shaped apex ( apex anteriorly).
→ formed by complex bone and cartilage framework
→ have floor, roof, and medial/ lateral walls

Separated:
From each other by nasal septum
From oral cavity by hard palate
From the cranial cavity by the frontal, ethmoid and sphenoid bones

Question 8

What are the 3 regions of the nasal cavity

Answer 8

→ vestibule
Within nares / ext. Nose
Lined with skin
Coarse hairs filter large particles

→respiratory:
Largest
Very neurovascular (capillaries warmair)
Respiratory epithelium

→ olfactory:
Contains olfactory (smell receptors)
Lined with olfactory epithelium