๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

An abnormal heart in Rana pipiens

โœ Scribed by Coventry, A. F.

Publisher
John Wiley and Sons
Year
1945
Tongue
English
Weight
208 KB
Volume
91
Category
Article
ISSN
0003-276X

No coin nor oath required. For personal study only.

โœฆ Synopsis

The heart here described seems of sufficient interest to merit a short account. It was found in a fully mature female killed for class use along with a number of others, and no external peculiarities were observed. When the ventral skin was opened, what appeared to be the ventricle of the heart was seen dorsal to the anterior edge of the pectoral muscles and ventral to the submaxillary muscles of the right side ; removal of the sternum and associated structures revealed a heart with the general relations shown in figure 1.

About one-third of the ventricle projected beyond the front end of the sternum, and the ventricle as a whole lay entirely to the right of the sagittal plane between the line of the right sternohyoid muscle and the jaw.

The atrium lay posterior to the ventricle and obliquely towards the midclle line so that it passed dorsal to the right sternohyoid muscle, by ~vhich it was strongly constricted.

๐Ÿ“œ SIMILAR VOLUMES

Abnormal reproductive organs in a specim
Abnormal reproductive organs in a specimen of rana pipiens
โœ Maclean, Bernice L. ๐Ÿ“‚ Article ๐Ÿ“… 1929 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 744 KB

Abnormalities in the reproductive organs of adult anuraiis are of interest because of their relative infrequence and because of their possible bearing on the general problem of sexuality. I n R laboratory where more than 500 specimens of Rana pipiens have been dissected each year f o r several years

Hermaphroditism in rana pipiens
Hermaphroditism in rana pipiens
โœ Christensen, Kermit ๐Ÿ“‚ Article ๐Ÿ“… 1929 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 927 KB
Sex reversal in Rana pipiens
Sex reversal in Rana pipiens
โœ Evans, Titus C. ๐Ÿ“‚ Article ๐Ÿ“… 1931 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 408 KB
Anaerobiosis in a frog,Rana pipiens
Anaerobiosis in a frog,Rana pipiens
โœ Rose, Francis Lewis ;Drotman, Robert Benjamin ๐Ÿ“‚ Article ๐Ÿ“… 1967 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 424 KB

Rana pipiens shows an obvious reduction in hepatic, ventricular, and gastrocnemius muscle glycogen concentrations with increasing time in anoxia. Pulmonary respiratory movements drop sharply during the first three minutes of anoxia and virtually cease after 30 minutes. Iodoacetate-poisoned frogs sur

Sexually dimorphic laryngeal morphology
Sexually dimorphic laryngeal morphology in Rana pipiens
โœ Blinda E. McClelland; Walter Wilczynski ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 737 KB

The sexually dimorphic vocal characteristics of Rana pipiens release calls suggest that there may be differences in the anatomical components of the larynx. The volumes of the arytenoid cartilage, surrounding muscle masses, vocal cords, supporting bronchial process, and the release-call amplitudes o