ANAT2241 Male Reproductive System: Difference between revisions
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** neck - short (about 1 µm) and attached to the basal plate. A transversely oriented centriole is located immediately behind the basal plate. The neck also contains nine segmented columns of fibrous material, which continue as the outer dense fibres into the tail.
| ** neck - short (about 1 µm) and attached to the basal plate. A transversely oriented centriole is located immediately behind the basal plate. The neck also contains nine segmented columns of fibrous material, which continue as the outer dense fibres into the tail.
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** tail - further divided into a middle piece, a principal piece and an end piece. The '''axonema''' (arrangement of microtubules in all cilia) begins in the middle piece. It is surrounded by nine outer dense fibres, which are not found in other cilia. In the middle piece (about 5 µm long), the axonema and dense fibres are surrounded by a sheath of mitochondria. The middle piece is terminated by a dense ring, the annulus. The principal piece is about 45 µm long. It contains a fibrous sheath, which consists of dorsal and ventral longitudinal columns interconnected by regularly spaced circumferential hoops. The fibrous sheath and the dense fibres do not extend to the tip of the tail. Along the last part (5 µm) of the tail, called the end piece, the axonema is only surrounded by a small amount of cytoplasm and the plasma membrane. | ** tail - further divided into a middle piece, a principal piece and an end piece. The '''axonema''' (arrangement of microtubules in all cilia) begins in the middle piece. It is surrounded by nine outer dense fibres, which are not found in other cilia. In the middle piece (about 5 µm long), the axonema and dense fibres are surrounded by a sheath of mitochondria. The middle piece is terminated by a dense ring, the annulus. The principal piece is about 45 µm long. It contains a fibrous sheath, which consists of dorsal and ventral longitudinal columns interconnected by regularly spaced circumferential hoops. The fibrous sheath and the dense fibres do not extend to the tip of the tail. Along the last part (5 µm) of the tail, called the end piece, the axonema is only surrounded by a small amount of cytoplasm and the plasma membrane. | ||
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Revision as of 15:17, 24 May 2018
ANAT2241 This practical support page content is not part of the virtual science practical class and provides additional information for student self-directed learning purposes. All practical class pages are located on Moodle - ANAT2241 |
General Objective
To know the histological and cytological structures of the major components of the male reproductive system.
Specific Objectives
- To describe the microanatomy of the testis and epididymis.
- To identify cells of the germinal epithelium of the seminiferous tubule: Sertoli cells, spermatogonia, spermatocytes, spermatids and spermatozoa.
- To know the main events occurring in spermiogenesis.
- To know the structure of the ductus deferens, seminal vesicle, prostate gland and penis.
Learning Activities
Examine the following virtual slides, and in course manual identify, draw and label the structures and note their function.
Virtual Slides: Male Reproductive System
Testis Histology
Spermatozoa
This brief animation shows an overview of the structural components of the spermatozoa.
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<html5media height="400" width="400">File:Spermatozoa_animation.mp4</html5media> |
Epididymis Histology
Human Testis (adult)
Human Testis (young)
Testis Histology Links: Testis Development | Spermatozoa Development | Histology
- Human (young): overview labeled | overview unlabeled | convoluted seminiferous tubules x10 | x40 | x40 | tunica albuginea x20
- Human (adult): overview x2 | convoluted seminiferous tubules labeled | x10 | x20 | x40 | x40 | epididymis ductulus efferens | ductus epididymidis | epithelium | overview x4 | x10 | x20 | x40 | ductus deferens labeled overview | epithelium | overview x2 | x10 | x40
- Human Stage 22: Testis - labeled overview | Testis - unlabeled overview | Testis - unlabeled detail | Testis - labeled detail | testis | Carnegie stage 22 | Movie - Urogenital stage 22
- Mouse: postnatal epididymis | 14 days postnatal | 33 days postnatal | 45 days postnatal | 2 months postnatal
Spermatozoa Development (expand to see terms) | ||
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Note there are additional glossaries associated with genital, spermatozoa, oocyte and renal.
See also: Spermatozoa Terms collapse table
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Other Species
Rabbit
Mouse
Ductus Deferens Histology
Prostate Histology
Human prostate histology | Corpora Amylacea | Submucosal gland |
(adult, low power overview) | (adult, detail) | (adult, high power detail) |
Penis Histology
Terms
- cortex - (Latin = rind, or bark) outer layer of an organ.
- hilum - or hilus (Latin,= a trifle; depression in a seed) a depression at vascular entrance/exit of a gland or organ.
- medulla - (Latin, medulla = pith, marrow) the inner portion of an organ, in contrast to cortex.
- mucosa - (Latin, = mucous membrane) thin layer which lines body cavities and passages formed by epithelium and lamina propria.
- parenchyma - (Greek," + enkeim = to pour in) the essential functional cells of an organ as opposed to its stroma.
- serosa - (Latin, serum = whey; a pale fluid) a serous membrane lining body cavities.
- stroma - (Greek, = a cover, table-cloth, bedding) term for the internal supporting frame-work of a tissue, or organ, as opposed to its parenchyma.
- tunica albuginea - a dense, white, fibrous sheath enclosing a part or organ.
- Histology 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 | ANAT2241 Support | Histology | Histology Stains | Embryology Glossary
Course Links
- Histology 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 | ANAT2241 Support | Histology | Histology Stains | Embryology Glossary
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Practical Support
- Pages can be accessed from any internet connected computer.
ANAT2241 Support Links: The Virtual Microscope | Covering and Lining Epithelia | Glandular Epithelia | CT Components | CT Types | Bone, Bone Formation and Joints | Muscle | Nervous | Blood | Eye | Cardiovascular | Respiratory | Integumentary | Gastrointestinal | Gastrointestinal Organs | Lymphatic and Immune | Endocrine | Urinary | Female Reproductive | Male Reproductive | Histology Stains | Histology Drawings | Practicals Health and Safety 2013 | Moodle - 2019
ANAT2241 This practical support page content is not part of the science practical class and provides only background information for student self-directed learning purposes.
Cite this page: Hill, M.A. (2024, May 7) Embryology ANAT2241 Male Reproductive System. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/ANAT2241_Male_Reproductive_System
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G