Respiratory System - Carnegie Stage 22: Difference between revisions
No edit summary |
|||
Line 129: | Line 129: | ||
Oesphagus. Apex of R lung in pleural cavity | Oesphagus. Apex of R lung in pleural cavity | ||
Sternum. Thymus gland. L brachiocephalic vein. Brachiocephalic trunk. | |||
|- | |- | ||
Line 144: | Line 144: | ||
| [[File:Stage_22 image 072.jpg|200px]] | | [[File:Stage_22 image 072.jpg|200px]] | ||
| [[:File:Stage_22 image 072.jpg|D2L]] | | [[:File:Stage_22 image 072.jpg|D2L]] | ||
| | | Lungs. | ||
|- | |- | ||
Line 154: | Line 154: | ||
| [[File:Stage_22 image 074.jpg|200px]] | | [[File:Stage_22 image 074.jpg|200px]] | ||
| [[:File:Stage_22 image 074.jpg|D4L]] | | [[:File:Stage_22 image 074.jpg|D4L]] | ||
| | | Right primary bronchus (torn) and right superior lobe bronchus. | ||
Left primary bronchus. | |||
Left and right pulmonary arteries. | |||
Ribs joining to sternum. | |||
|- | |- | ||
| [[File:Stage_22 image 075.jpg|200px]] | | [[File:Stage_22 image 075.jpg|200px]] | ||
| [[:File:Stage_22 image 075.jpg|D5L]] | | [[:File:Stage_22 image 075.jpg|D5L]] | ||
| | | R, L primary bronchi. R anterior and posterior segmental bronchi coming off R superior lobe bronchus. L, R pulmonary arteries. Hilar attachments of lungs to mediastinal tissues - note extent of R, L pleural cavities. | ||
|- | |- | ||
| [[File:Stage_22 image 076.jpg|200px]] | | [[File:Stage_22 image 076.jpg|200px]] | ||
| [[:File:Stage_22 image 076.jpg|D6L]] | | [[:File:Stage_22 image 076.jpg|D6L]] | ||
| | | R, L primary bronchi (note left still has not branched). R pulmonary artery. | ||
|- | |- | ||
| [[File:Stage_22 image 077.jpg|200px]] | | [[File:Stage_22 image 077.jpg|200px]] | ||
| [[:File:Stage_22 image 077.jpg|D7L]] | | [[:File:Stage_22 image 077.jpg|D7L]] | ||
| | | R, L primary bronchi: note distinct horizontal course of L, vertical course of R, L pulmonary veins (L empty). R pulmonary artery. | ||
|- | |- | ||
Line 175: | Line 182: | ||
| [[File:Stage_22 image 078.jpg|200px]] | | [[File:Stage_22 image 078.jpg|200px]] | ||
| [[:File:Stage_22 image 078.jpg|E1L]] | | [[:File:Stage_22 image 078.jpg|E1L]] | ||
| | | Pulmonary veins. Azygos, hemiazygos veins. Ribs. Intercostal muscles. | ||
|- | |- | ||
| [[File:Stage_22 image 079.jpg|200px]] | | [[File:Stage_22 image 079.jpg|200px]] | ||
| [[:File:Stage_22 image 079.jpg|E2L]] | | [[:File:Stage_22 image 079.jpg|E2L]] | ||
| | | Pulmonary veins. Azygos, hemiazygos veins. Ribs. Intercostal muscles. | ||
|- | |- | ||
| [[File:Stage_22 image 080.jpg|200px]] | | [[File:Stage_22 image 080.jpg|200px]] | ||
| [[:File:Stage_22 image 080.jpg|E3L]] | | [[:File:Stage_22 image 080.jpg|E3L]] | ||
| | | R dome of diaphragm. R long middle and inferior lobes. L long superior and inferior lobes. Xiphoid process. | ||
Liver. | |||
|- | |- | ||
| [[File:Stage_22 image 081.jpg|200px]] | | [[File:Stage_22 image 081.jpg|200px]] | ||
| [[:File:Stage_22 image 081.jpg|E4L]] | | [[:File:Stage_22 image 081.jpg|E4L]] | ||
| | | Diaphragm (note costal attachment). R lung inferior lobe. | ||
Inferior vena cava, dorsal to diaphragm. | |||
|- | |- | ||
| [[File:Stage_22 image 082.jpg|200px]] | | [[File:Stage_22 image 082.jpg|200px]] | ||
| [[:File:Stage_22 image 082.jpg|E5L]] | | [[:File:Stage_22 image 082.jpg|E5L]] | ||
| | | Inferior lobes of lungs. | ||
Diaphragm with sternal attachments. | |||
Inferior vena cava, now ventral to diaphragm (vena caval foramen). | |||
Liver. | |||
|- | |||
| [[File:Stage_22 image 083.jpg|200px]] | |||
| [[:File:Stage_22 image 083.jpg|E6L]] | |||
| Liver. Thoracic aorta. Large adrenal glands. | |||
|- | |||
| [[File:Stage_22 image 084.jpg|200px]] | |||
| [[:File:Stage_22 image 084.jpg|E7L]] | |||
| Lumbar diaphragm. Thoracic aorta. Note ribs 11 and 12 on L and three layers of abdominal muscles extending ventrally. | |||
|- | |||
|- | |||
| [[File:Stage_22 image 085.jpg|200px]] | |||
| [[:File:Stage_22 image 085.jpg|F1L]] | |||
| Lumbar diaphragm. Thoracic aorta. | |||
|- | |||
| [[File:Stage_22 image 086.jpg|200px]] | |||
| [[:File:Stage_22 image 086.jpg|F2L]] | |||
| Attachment of lumbar diaphragm near L 1 on R with psoas muscle dorsal to it. Note abdominal aorta giving rise to superior mesenteric artery. | |||
|- | |- | ||
|} | |} |
Revision as of 11:13, 24 August 2010
Introduction
The individual serial slices have also been incorporated into a 3D model of this embryo. |
Section | Name | Description |
---|---|---|
A5L | Bridge of nose.
R and L olfactory bulbs from forebrain. | |
A6L | Nose. Nasal septum. Nasal capsule.
Olfactory epithelium lining roof of nasal cavity. Orbital part of the developing sphenoid bone (intramembranous ossification). | |
A7L | Conchae. Nasal capsule and septum. | |
B1L | Conchae. Optic nerve. | |
B2L | Description | |
B3L | Perpendicular plate of ethmoid cartilage. Adenohypophysis. Neurohypophysis. Ant. and post. walls of hypopophysial fossa. Lesser wings of sphenoid cartilage. Internal carotid arteries. | |
B4L | Dorsum of tongue. Oropharynx communicating with naso-pharynx (cf. B3L - palatal processes not fused). | |
B5L | Tongue with palatal processes at either side. Transverse (intrinsic) muscle of tongue.
Pharyngotympanic tubes. | |
B6L | Tongue with transverse muscle, genioglossus muscle (medial) and hyoglossus muscle (lateral).
Palatal processes. Meckel's cartilage. Note teeth enamel organs (dark masses at sides of tongue attachment). | |
B7L | Transverse caudal pharynx. epiglottis. Hyoid musculature. Pharyngeal constrictor muscle. Submandibular gland. | |
C1L | Pharynx. Pharyngeal constrictor muscle. laryngeal caecum (ventral). Arytenoid swellings in contact.
Thyroid cartilage laminae (anterolateral), with superior horns (posterolateral). Hyoid cartilage. Internal jugular veins. "Muz's cheshire cat" | |
C2L | Pharynx. Thyroid cartilage. Smaller laryngeal caecum (cf.C1). Carotid neurovascular bundle. | |
C3L | Pharynx with its inferior constrictor muscle. Glottis region. | |
C4L | Oesophagus with muscle layer and trachea with thyroid gland laterally.
Common carotid arteries. Vagus nerve. Internal jugular veins. (Section damaged) | |
C5L | Oesophagus, smaller than in C4. Trachea.
Thyroid gland (isthmus). Clavicle. Small dark masses near posterolateral borders of thyroid gland are the parathyroid glands from the caudal part of 3rd pharyngeal pouch. | |
C6L | Trachea.
Clavicles. Dark connecting stalk between parathyroid gland and thymus (rostral end of 3rd pharyngeal pouch). Common carotid artery. | |
C7L | Trachea.
Oesphagus. Apex of R lung in pleural cavity Sternum. Thymus gland. L brachiocephalic vein. Brachiocephalic trunk. | |
D1L | Lungs. Visceral and parietal pleurae. Pleural cavities.
Sternum. Thymus. Other contents of superior mediastinum. | |
D2L | Lungs. | |
D3L | Tracheal bifurcation. | |
D4L | Right primary bronchus (torn) and right superior lobe bronchus.
Left primary bronchus. Left and right pulmonary arteries. Ribs joining to sternum. | |
D5L | R, L primary bronchi. R anterior and posterior segmental bronchi coming off R superior lobe bronchus. L, R pulmonary arteries. Hilar attachments of lungs to mediastinal tissues - note extent of R, L pleural cavities. | |
D6L | R, L primary bronchi (note left still has not branched). R pulmonary artery. | |
D7L | R, L primary bronchi: note distinct horizontal course of L, vertical course of R, L pulmonary veins (L empty). R pulmonary artery. | |
E1L | Pulmonary veins. Azygos, hemiazygos veins. Ribs. Intercostal muscles. | |
E2L | Pulmonary veins. Azygos, hemiazygos veins. Ribs. Intercostal muscles. | |
E3L | R dome of diaphragm. R long middle and inferior lobes. L long superior and inferior lobes. Xiphoid process.
Liver. | |
E4L | Diaphragm (note costal attachment). R lung inferior lobe.
Inferior vena cava, dorsal to diaphragm. | |
E5L | Inferior lobes of lungs.
Diaphragm with sternal attachments. Inferior vena cava, now ventral to diaphragm (vena caval foramen). Liver. | |
E6L | Liver. Thoracic aorta. Large adrenal glands. | |
E7L | Lumbar diaphragm. Thoracic aorta. Note ribs 11 and 12 on L and three layers of abdominal muscles extending ventrally. | |
F1L | Lumbar diaphragm. Thoracic aorta. | |
F2L | Attachment of lumbar diaphragm near L 1 on R with psoas muscle dorsal to it. Note abdominal aorta giving rise to superior mesenteric artery. |
All Sections
A1L | A2L | A3L | A4L | A5L | A6L | A7L |
B1L | B2L | B3L | B4L | B5L | B6L | B7L |
C1L | C2L | C3L | C4L | C5L | C6L | C7L |
D1L | D2L | D3L | D4L | D5L | D6L | D7L |
E1L | E2L | E3L | E4L | E5L | E6L | E7L |
F1L | F2L | F3L | F4L | F5L | F6L | F7L |
G1L | G2L | G3L | G4L | G5L | G6L | G7L |
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2024, April 25) Embryology Respiratory System - Carnegie Stage 22. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Respiratory_System_-_Carnegie_Stage_22
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G