29/10/2025
📘CHEW 100L FIRST SEMESTER
ANATOMY AND PHYSIOLOGY
TOPIC: RESPIRATORY SYSTEM
JIGO: TSARIN NUMFASHI
Definition
Ma’ana
The respiratory system is the body system responsible for breathing.
Tsarin numfashi shi ne tsarin jiki da ke da alhakin shakar iska da fitar da ita.
It enables the exchange of gases — oxygen is taken into the body, and carbon dioxide is expelled.
Yana ba da damar musayar iskar gas — iskar oxygen tana shiga jiki, sannan iskar carbon dioxide tana fita.
This process is essential for maintaining life and ensuring that every cell receives the oxygen needed for energy production.
Wannan tsari yana da muhimmanci wajen ci gaba da rayuwa da tabbatar da cewa kowace ƙwayar jiki tana samun iskar oxygen da ake bukata don samar da kuzari.
Main Components of the Respiratory System
Muhimman Sassan Tsarin Numfashi
The respiratory system is made up of several organs that work together to allow breathing and gas exchange.
Tsarin numfashi ya ƙunshi sassa da dama da ke aiki tare domin ba da damar shakar iska da fitar da gas.
Nose and Nasal Cavity
Hanci da Ramin Hanci
The nose is the main entry point for air.
Hanci shi ne babban hanyar da iska ke shiga jiki.
The nasal cavity filters, warms, and moistens the air before it passes into the lungs.
Ramin hanci yana tacewa, dumama, da laushar iska kafin ta shiga huhu.
Pharynx (Throat)
Makogwaro
The pharynx serves as a passageway for both air and food.
Makogwaro na zama hanya ga iska da abinci.
It directs air from the nasal cavity to the larynx.
Yana kai iskar daga ramin hanci zuwa akwatin murya.
Larynx (Voice Box)
Akwatin Murya
The larynx contains the vocal cords and helps produce sound.
Akwatin murya yana ɗauke da igiyoyin murya kuma yana taimakawa wajen fitar da sauti.
It also prevents food from entering the airway.
Haka kuma yana hana abinci shiga hanyar iska.
Trachea (Windpipe)
Bututun Numfashi
The trachea is a tube that connects the larynx to the bronchi.
Bututun numfashi hanya ce da ke haɗa akwatin murya da rassan huhu.
It carries air to and from the lungs.
Yana ɗaukar iska zuwa da kuma daga huhu.
Bronchi and Bronchioles
Rassan Huhu da Ƙananan Rassa
The bronchi are two tubes that branch from the trachea into each lung.
Rassan huhu bututu biyu ne da ke fita daga bututun numfashi zuwa kowane huhu.
They further divide into smaller tubes called bronchioles, which distribute air evenly throughout the lungs.
Sannan suna rabuwa zuwa ƙananan rassan da ake kira bronchioles, waɗanda ke rarraba iska cikin huhu gaba ɗaya.
Lungs
Huhu
The lungs are the main organs of respiration.
Huhu su ne manyan sassan da ke da alhakin numfashi.
They contain tiny air sacs called alveoli where the exchange of oxygen and carbon dioxide takes place.
Suna ɗauke da ƙananan jakunkuna na iska da ake kira alveoli inda ake musayar iskar oxygen da carbon dioxide.
Diaphragm
Tsokar Diaphragm
The diaphragm is a dome-shaped muscle located below the lungs.
Tsokar diaphragm tsoka ce mai siffar rufi da ke ƙasa da huhu.
It contracts and relaxes to control breathing.
Tana matsewa da saki don sarrafa numfashi.
Functions of the Respiratory System
Ayyukan Tsarin Numfashi
The respiratory system performs several vital functions:
Tsarin numfashi yana aiwatar da muhimman ayyuka da dama:
It supplies oxygen to the blood for distribution to body cells.
Yana bai wa jini iskar oxygen domin rarrabawa ga ƙwayoyin jiki.
It removes carbon dioxide, a waste product of metabolism.
Yana fitar da iskar carbon dioxide, wadda sharar metabolism ce.
It helps regulate the pH (acidity) of the blood.
Yana taimakawa wajen daidaita pH ko zafin jinin jiki.
It produces sound for speech.
Yana taimakawa wajen samar da sauti don magana.
It assists in the sense of smell.
Yana taimakawa wajen jin ƙamshi.
Example
Misali
When a person in Nigeria walks under the hot sun, the body needs more oxygen to maintain energy.
Idan mutum a Najeriya yana tafiya ƙarƙashin rana mai zafi, jikinsa yana buƙatar ƙarin iskar oxygen don kula da kuzari.
The breathing rate increases, allowing more oxygen to reach the lungs and blood, which helps maintain normal body function.
Yawan numfashi yana ƙaruwa, wanda ke ba da damar ƙarin iskar oxygen ta isa huhu da jini, hakan yana taimakawa wajen daidaiton ayyukan jiki.
Case Study
Nazarin Lamari
In a rural community in northern Nigeria, a child exposed to smoke from firewood cooking develops persistent coughing and difficulty in breathing.
A wani ƙauye a arewacin Najeriya, yaro da yake shakar hayaƙin itacen girki yana fara tari da wahalar numfashi.
The healthcare worker identifies this as a possible case of bronchitis — an inflammation of the airways caused by smoke inhalation.
Ma’aikacin lafiya ya gano wannan a matsayin bronchitis — kumburin hanyoyin iska da hayaƙi ke haifarwa.
Advising the family to use improved cooking stoves and ensure proper ventilation helps prevent further respiratory problems.
Bayar da shawarar a yi amfani da murhun zamani da samun iskar shiga ɗaki yadda ya kamata yana taimakawa wajen hana matsalolin numfashi nan gaba.
COMMON DISEASES THAT CAN AFFECT THE RESPIRATORY SYSTEM
CUTUKA DA SUKAN K**A TSARIN NUMFASHI
1. Asthma
1. Asma
Asthma is a chronic condition in which the airways become narrow and inflamed, making breathing difficult.
Asma cuta ce ta dindindin wadda hanyoyin iska ke ƙanƙancewa kuma su kumbura, hakan yana sa wahalar numfashi.
Common symptoms include wheezing, shortness of breath, and coughing.
Alamominta sun haɗa da bushewar iska, ƙarancin numfashi, da tari.
Triggers include dust, smoke, cold air, and exercise.
Abubuwan da ke jawo ta sun haɗa da ƙura, hayaƙi, iska mai sanyi, da motsa jiki.
2. Pneumonia
2. Ciwon Huhu (Pneumonia)
Pneumonia is an infection that causes inflammation of the lungs.
Pneumonia cutar ƙwayoyin cuta ce da ke haifar da kumburin huhu.
It can be caused by bacteria, viruses, or fungi.
Ana iya samun ta daga ƙwayoyin cuta, ƙwayoyin ƙwayar cuta, ko naman gwari.
Symptoms include fever, chest pain, coughing, and difficulty breathing.
Alamominta sun haɗa da zazzaɓi, ciwon ƙirji, tari, da wahalar numfashi.
In Nigeria, pneumonia is a major cause of death among children under five years old.
A Najeriya, pneumonia tana daga cikin manyan dalilan mutuwar yara ƙasa da shekaru biyar.
3. Tuberculosis (TB)
3. Cutar Tarin Tiwon (TB)
Tuberculosis is a bacterial infection caused by Mycobacterium tuberculosis.
Cutar tarin tiwon cutar ƙwayar cuta ce da ƙwayar Mycobacterium tuberculosis ke haifarwa.
It mainly affects the lungs and spreads through the air when an infected person coughs or sneezes.
Yana fi kamawa huhu kuma yana yaduwa ta iska idan mai cutar ya yi tari ko atishawa.
Common symptoms include prolonged coughing, chest pain, night sweats, and weight loss.
Alamominta sun haɗa da tari mai tsawo, ciwon ƙirji, zufa da dare, da rage nauyi.
TB is a public health concern both in Nigeria and globally.
Tarin tiwo matsala ce ta kiwon lafiya a Najeriya da ma duniya baki ɗaya.
4. Chronic Obstructive Pulmonary Disease (COPD)
4. Cutar Tsawon Lokacin Toshewar Huhu (COPD)
This is a long-term disease that causes airflow blockage and breathing problems, often due to smoking or long-term exposure to irritants.
Wannan cuta ce ta dogon lokaci da ke haifar da toshewar hanyoyin iska da matsalar numfashi, galibi saboda shan taba ko dogon lokaci da hayaƙi ko ƙura.
5. COVID-19
5. Cutar COVID-19
COVID-19 is a viral respiratory infection caused by the coronavirus SARS-CoV-2.
COVID-19 cuta ce ta iskar numfashi da ƙwayar coronavirus SARS-CoV-2 ke haifarwa.
It can lead to cough, fever, and shortness of breath.
Tana iya haifar da tari, zazzaɓi, da ƙarancin numfashi.
Severe cases may cause pneumonia and respiratory failure.
A lokuta masu tsanani tana iya jawo ciwon huhu da gaza numfashi.
It has affected millions worldwide, including Nigeria.
Tana daga cikin cututtuka da s**a shafi miliyoyin mutane a duniya, har da Najeriya.