Question

Describe the structure of the resperatory system. For each structural component that you name, include a description of its role.

(FULL explanation please. Expert only. Thank you)

Answer 1

Respiratory system:The system is additionally called the Ventilatory or Pulmonary system. this method is answerable for the availability of Oxygen and also theremoval of greenhouse emission, heat and water vapours. All living creatures need Oxygen and provides off greenhouse emission. O is neededfor each cell within the body to perform. The mechanism of respiration is that the method by that cells receive a continuing provide of Oxygen and Co2 is removed. The system consists of your nose, lungs and respiration tubes. Its job is to require in Oxygen for your body cells and to induce obviate greenhouse emission. this method conjointly incorporates a role to play in regulation the body's add-base balance.

Structure of the respiratory system:Air is typically drawn into the body via the nose, however typically the mouth, and passes through a series of airways to succeed in the lungs. This series of airways is stated because the tract, and may be divided into 2 main components. The higher tract includes the nose, nasal cavity, mouth, pharynx and larynx , whereas the lower tract consists of the trachea, bronchi and lungs.

Nose: The air from the surroundings enters in to the nose. it passes the air through nasal cavity.The nostrils in the nose contains small hairs it filter out the foreign particles.

Nasal cavity: It is present above and behind of nose. in this the air is further warmed and moistured. It passes to nasopharynx then air enters in to pharynx.

Pharynx:The funnel-shaped  connects the cavity and mouth to the cartilaginous structure and ordinarily referred to as the pharynx.the pharynx may be a tiny length of conduit that measures around ten to thirteen cm from the bottom of the bone to the amount of theof the sixth vertebra. The muscular throat wall consists of muscle throughout its length. it's a passageway for food similarly as air, which means special diversifications square measure needed to forestall choking once food or liquid is enclosed.

Larynx:The cartilaginous structure has rigid walls, shaped of muscle and cartilage, contains the vocal cords and connects the throat to the trachea.

Trachea:The lower tract starts at the trachea (windpipe). it's regarding twelve cm long by a pair of cm in diameter and contains rings of animal tissue to forestall it from collapsing. It travels down the neck ahead of the muscular structure and branches into 2 bronchi: the correct and left cartilaginous tube.

Bronchus:The main role of the 2 bronchi is to conduct air into the lungs. the correct cartilaginous tube is shorter and wider than the left. By the lime inhaled air reaches the bronchi, it is warm, expensive of most impurities and saturated with vapour. Once within the lungs, everycartilaginous tube subdivides into body part bronchi: 3 on the correct and 2 on the left. The body part bronchi branch into segmental bronchi, that divide once more into smaller and smaller bronchi. Overall, there area unit roughly twenty three orders of branching cartilaginous tube airways within the lungs. thanks to this branching pattern, the cartilaginous tube network inside the lungs is usuallycalled the cartilaginous tube tree.

Bronchioles:Bronchioles area unit little airways that reach from the bronchi. {they area unit|they're} regarding one millimeter in diameter and are the primary airway branches of the systema respiratorium that don't contain animal tissue. Bronchioles terminate in clusters of thin-walled air sacs called alveoli within the lungs​.

Lungs:The right and left lungs suspended within the right and left serous membrane cavities straddling the guts. every respiratory organis split into lobes — the correct respiratory organ has 3 lobes and therefore the left 2. The lungs area unit enclosed by serous membrane membranes called serosa. These contain a cavity with fluid that lubricates the serous membrane surfaces as your lungs expand and contract, thus preventing friction.