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Terms in this set (19)
A pouch like protrusion from the foregut that gives rise to the trachea, bronchi, and the branches that form from the tracheobronchial tree.
Primary bronchial buds
Split into left and right buds, this gives rise to the lungs and bronchi.
The muscular tube which allows the passage of food. It arises from the stem of the respiratory diverticulum.
Secondary bronchial buds
Outgrowths of the primary bronchial buds, three on the right side and two on the left, which gives rise to the lung lobes.
Tertiary bronchial buds
Branching of the secondary bronchial buds, these become the bronchopulmonary segments of the lung.
Bronchi and tissue in the mature lung
The final branches of the respiratory tree
The generation of the membranous portion of the interventricular and interatrial septa and the separation of the aorta from the pulmonary artery.
Also known as primitive alveoli. The sacs formed in lung tissue when the respiratory bronchioles become invested with capillaries. It allows limited gas exchange.
What gives rise to the mucosal lining of the bronchi and to the epithelial cells of the alveoli?
What gives rise to the muscle, cartilage and the visceral pleural of the lung?
The space formed within the lateral plate mesoderm and enclosed in the embryo when the edges of the ectoderm fuse.
A thick bar of mesoderm that forms the initial partition separating the coelom into thoracic and abdominal cavities.
What gives rise to part of the diaphragm and ventral mesentery of the stomach and duodenum?
The potential space located between the parietal layer and visceral layer of the serous pericardium.
Also called the extraembryonic coelom. It is a hollow space that forms as the extraembryonic mesoderm splits into two layers.
The fold of blastoderm at the cephalic end of the developing embryo
The paired nerves that innervate the diaphragm. Formed when the spinal nerves of cervical levels (C3-C5) join together.
They form on the lateral body wall of the primitive pericardial cavity and grow medially to fuse with each other and with the ventral surface of the foregut mesoderm. Thus subdividing the primitive pericardial cavity into a definitive pericardial cavity and two pleural cavities.
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