secret Flashcards
(25 cards)
What are Patagia?
The skin folds of the wings.
What is the Uropygial gland?
Opens dorsally at the base of the tail feathers and usually secretes an oily fluid which the bird uses in preening its feathers.
What is the Syringeal Bulla?
Modified by the presence of a dilated compartment, the bony syringeal bulla (bulla syringis), that extends from its lateral side. It is divided into a large and a small cavity and is believed to act as a resonance chamber.
What is the Centrum?
Scar on the fundus which indicates the fetal attachment of the urachus.
What is the Neck (kidney)?
Constricted portion of the urinary bladder.
What is the Hilus?
A concavity in the medial aspect of each kidney where arteries and nerves enter the kidney while ureter and lymphatic vessel leave the kidney.
What is Nephrectomy?
Removal/excision of a kidney.
What are Uterine Ducts (Oviduct)?
Paired convoluted tubes that conduct the ova from each ovary to the respective horn of the uterus.
The site of fertilization of ova by spermatozoa; supported by mesosalpinx, infundibulum, and fimbriae.
What are Efferent Tubules?
These tubules enter the head of the epididymis after the rete testis.
What is the Ampulla?
Glandular enlargements associated with the terminal parts of the ductus deferentia.
Empties into the ductus deferentia, contributes volume to the semen, well developed in stallion, bull and ram, absent in boar.
What is the Prostate Gland?
Unpaired gland that more or less completely surrounds the pelvic urethra.
Secretes thick, milky fluid that mixes with seminal fluid to provide nutrition and substance to the semen; high in inorganic ions like sodium, chlorine, calcium, and magnesium, producing an alkaline secretion that gives semen its characteristic odor.
What is the Bulbo-urethral Gland?
Formerly Cowper’s glands, paired glands on either side of the pelvic urethra.
Especially large in boar; produces a fluid that moves down the urethra ahead of the seminal fluid, cleans and neutralizes the urine residue in the urethra that can kill sperm cells.
What is Corpus albicans?
Fibroblast cells invade corpus luteal tissue into scar tissue.
What are Caruncles?
Specialized, raised structures on the uterine wall that are crucial for forming the placenta during pregnancy.
What is the Epididymis?
A structure where sperm matures and is stored.
What is Spermatogenesis/Spermiogenesis?
2 to 5 degrees below body temp is essential for growth and maturation.
What is the Lactiferous sinus?
Base of teat.
What are Remiges?
Flight feathers found in the antebrachium.
What is Uricase?
Birds lack the enzyme and are therefore unable to convert urate into allantoin.
What is Rhamphotheca?
Epidermal covering of the beak forms a hard keratinized sheath.
What is the Gizzard?
Muscular stomach, sometimes referred to as a ‘masticatory organ’ as it replaces the function of the teeth.
What is the Glottis?
Longitudinal slit, located in the midline of the laryngeal mound.
What are Tori intercostales?
Separate lung tissue segments.
What are Air capillaries?
Intimately intermeshed with a dense network of blood capillaries, permitting gas exchange to take place across the blood–gas barrier.
