What are the four surfaces of the lungs?
Lung
| Surfaces | Costal, medial (mediastinal and vertebral), diaphragmatic |
|---|---|
| Borders | Anterior, posterior, and inferior |
| Parts of the lung | Apex and base |
| Lobes | Left lung – superior and inferior Right lung – superior, middle, and inferior |
| Fissures | Left lung – oblique Right lung – oblique and horizontal |
What are the 5 lung lobes?
The lung consists of five lobes. The left lung has a superior and inferior lobe, while the right lung has superior, middle, and inferior lobes. Thin walls of tissue called fissures separate the different lobes. Only the right lung has a middle lobe.
What are the lobes of the lungs?
lung structure …and is composed of three lobes, a superior, middle, and inferior lobe, separated from each other by a deep horizontal and an oblique fissure. The left lung, smaller in volume because of the asymmetrical position of the heart, has only two lobes separated by an oblique fissure.
Which lung has 3 lobes and why?
The left lung is smaller because of the space taken up by the heart (see diaphragm for an image of this). Each lung is separated into lobes branching off the main bronchus; the right lung has three lobes, while the left has only two lobes.
What are the surfaces of the lungs?
The three surfaces of the lung include the costal, medial, and diaphragmatic surfaces. The costal surface is covered by the costal pleura and is along the sternum and ribs. It also joins the medial surface at the anterior and posterior borders and diaphragmatic surfaces at the inferior border.
How many lobes are in the lungs?
Each lung is divided into lobes (sections): The right lung has 3 lobes and is slightly larger than the left lung. The left lung has 2 lobes. The heart sits in the cardiac notch, which is a groove in the lower lobe.
What are the 7 parts of the lungs?
The lower respiratory tract is made up of the: Lungs. Bronchi and bronchioles. Air sacs (alveoli)…Respiratory system
- Nose.
- Mouth.
- Throat (pharynx)
- Voice box (larynx)
- Windpipe (trachea)
- Large airways (bronchi)
- Small airways (bronchioles)
- Lungs.
How many lobes are there in lungs?
Where are the lobes located?
The four lobes of the brain are the frontal, parietal, temporal, and occipital lobes (Figure 2). The frontal lobe is located in the forward part of the brain, extending back to a fissure known as the central sulcus .
What are lobes?
In anatomy, a lobe is a clear anatomical division or extension of an organ (as seen for example in the brain, lung, liver, or kidney) that can be determined without the use of a microscope at the gross anatomy level.
Why does left lung have only 2 lobes?
The left lung has only two formal lobes because of the space taken up in the left side of the chest cavity by the heart, though it does have the lingula, which is similar to a lobe.
Why right lung has 3 lobes and left lung has 2 lobes?
The oblique fissure in the left lung separates the superior and the inferior lobe. The oblique and horizontal fissure divides the lungs into superior, middle and inferior lobes. Thus the right lung has three lobes while the left has two.