7 - FROG MAJOR INTERNAL

Cards (71)

  • What teeth are located on the margins of the upper jaw?
    Maxillary teeth
  • Which bones bear the maxillary teeth?
    Maxilla and premaxilla
  • Where are the internal nares located?
    Anterolateral roof of mouth
  • What passage connects internal and external nares?
    Nasal passage/choana
  • What teeth are medial to internal nares?
    Vomerine teeth
  • Which bones bear vomerine teeth?
    Vomer bones
  • Where do the eustachian tubes open?
    Posterolateral roof of mouth
  • What structure do the eustachian tubes lead to?
    Middle ear
  • Where is the tongue situated?
    Anterior floor of mouth
  • How does the frog catch insects?
    Tongue flips posteriorly at high speed
  • Where are vocal sac openings located?
    Posterolateral floor of mouth
  • Are vocal sacs more common in males or females?
    Males
  • Where is the glottis located?
    Posterior ventral midline of oral cavity
  • What shape is the glottis in males?
    Slitlike
  • What sound structure lies beneath the glottis?
    Larynx
  • What supports the larynx?
    Laryngeal cartilages
  • Where is the entrance to the esophagus located?
    Posterior end of oral cavity
  • Where are the thyroid glands located?
    Beside hyoid cartilage posterior horns
  • What hormone do thyroid glands secrete?
    Iodine-rich hormone
  • What process does the thyroid gland hormone control?
    Metamorphosis from tadpole
  • What is the white midventral line visible after cutting skin?
    • Linea alba
  • What muscle runs parallel to the linea alba?
    Rectus abdominis
  • What large vein adheres to linea alba?
    Ventral abdominal vein
  • What membrane lines the body cavity?
    Peritoneum
  • What are organs within the peritoneum called?
    Viscera
  • What structure connects organ peritoneum to body cavity peritoneum?
    Mesentery
  • What type of membrane is a mesentery?
    Double-layered
  • Which mesentery usually disappears: dorsal or ventral?
    Ventral
  • What happens to retroperitoneal organs?
    Bulge into cavity carrying lining
  • What condition of female frogs occurs during breeding season?
    Ovaries greatly enlarged
  • What fills the ovaries during breeding season?
    Black and white ova (eggs)
  • What cavity houses the heart?
    Pericardial cavity
  • What membrane surrounds the heart?
    Pericardium
  • What separates the pericardial cavity from abdominal cavity?
    Pericardium
  • How many lobes does the liver have?
    Three (right, left, median)
  • What color is the liver normally?
    Brown
  • What substances may alter liver color in injected specimens?
    Blue or yellow latex
  • Name two functions of the liver.
    • Bile secretion
    • Glycogen storage
  • What structure lies between the lobes of the liver?
    Gall bladder
  • What color is the gall bladder?
    Greenish