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The bi-potential external genitalia are those that exist before the the genitalia differentiate into male or female genitalia under the influence of various hormones. The structures that are eventually derived from the 3 main parts of the undifferentiated external genitalia are as follows for females and males:
Female
- Genital (or phallic) tubercle = clitoris
- Urethral folds = labia minora
- Labioscrotal swelling = labia majora, mons pubis
Male
- Genital (or phallic) tubercle = penis
- Urethral folds = ventral aspect of the penis
- Labioscrotal swelling = scrotum
What else can I help you with?
What hormone is responsible for differentiation of male reproductive organ during fetal life?
The hormone responsible for differentiation of the male reproductive organs during fetal life is dihydrotestosterone (DHT). It is derived from testosterone and plays a key role in the development of male external genitalia.
What structures is derived from the ectoderm?
brain and spinal cord
What does exo mean in biology?
In biology, "exo" is a prefix derived from the Greek word "exō," meaning "outside" or "external." It is often used to describe structures or processes that occur outside a cell or organism, such as exocytosis, where substances are expelled from a cell. Additionally, it can refer to external features or interactions, such as exoskeletons in certain animals.
What does external problems mean?
it means problems which come from outside of something. External means coming or derived from an outside source.
What are the structures formed from the foregut?
Structures which are derived from the foregut are:stomachlivergall bladderpancreasduodenal cap, descending duodenum (1st and 2nd parts of the duodenum)
What are the structures formed from the hindgut?
Structures derived from the hindgut are:distal third of the transverse colondescending colonsigmoid colonrectumupper portion of the anal canal
Did derived structures appear earlier in the phylogeny of an organism than conservative structures?
Read page 12 of the lab manual... Derived is more resent than conservative, therefore it would have appeared later than conservative.
What is worm-like cells structures derived from chromatin during cell reproduction?
Chromosomes
What are the structures formed from the midgut?
Structures which are derived from the midgut are:horizontal and ascending duodenum (3rd and 4th parts)jejunumiliumcecumascending colonfirst two-thirds of the transverse colon
Is malignant melanoma skin cancer derived from epithelial cells?
No, melanoma is skin cancer derived from melanocytes. Non-melanoma skin cancer is a malignant growth of the external surface or epithelial layer of the skin.
What adult structures is not derived from the same primary germ layer as the others?
The notochord is an adult structure that is not derived from the same primary germ layer as the others. While structures like muscles, bones, and connective tissues derive from mesoderm, the notochord originates from the mesoderm but later forms from the embryonic ectoderm.
What does an empiricist think about the external world?
An empiricist believes that knowledge is derived from sensory experience and observation of the external world. They emphasize the importance of evidence and empirical data to understand the world around us.
