Histochemistry profile of the biceps brachii muscle fibres of capuchin monkeys (Cebus apella, Linnaeus, 1758)

A general analysis of the behaviour of “Cebus” shows that when this primate moves position to feed or perform another activity, it presents different ways of locomotion. This information shows that the brachial biceps muscle of this animal is frequently used in their locomotion activities, but it should also be remembered that this muscle is also used for other development activities like hiding, searching for objects, searching out in the woods, and digging in the soil. Considering the above, it was decided to research the histoenzimologic characteristics of the brachial biceps muscle to observe whether it is better adpted to postural or phasic function. To that end, samples were taken from the superficial and deep regions, the inserts proximal (medial and lateral) and distal brachial biceps six capuchin monkeys male and adult, which were subjected to the reactions of m-ATPase, NADH-Tr. Based on the results of these reactions fibres were classified as in Fast Twitch Glycolitic (FG), Fast Twitch Oxidative Glycolitic (FOG) and Slow Twitc (SO). In general, the results, considering the muscle as a whole, show a trend of frequency FOG> FG> SO. The data on the frequency were studied on three superficial regions FOG=FG>SO; the deep regions of the inserts proximal FOG=FG=SO and inserting the distal FOG>FG=SO. In conclusion, the biceps brachii of the capuchin monkey is well adapted for both postural and phasic activities.

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Biceps Rupture in Water-related Sporting Activities

Shoulder & Elbow ◽

10.1111/j.1758-5740.2010.00056.x ◽

2010 ◽

Vol 2 (2) ◽

pp. 127-130

Author(s):

Cheng H. Lo ◽

Christopher Coombs ◽

Simon N. Bell

Keyword(s):

Biceps Brachii ◽

Early Recognition ◽

Biceps Brachii Muscle ◽

Muscle Repair ◽

Biceps Muscle ◽

Muscle Belly ◽

Injury Management ◽

Muscle Rupture ◽

Biceps Rupture ◽

Sporting Activities

Closed traumatic disruptions of biceps brachii muscle belly are rarely seen. In this paper, we report two rare cases of biceps brachii muscle belly rupture sustained while water-skiing or wakeboarding and discuss the mechanism of injury, management and outcomes after a literature review. A review of published articles revealed only three previously reported cases of water skiing related biceps muscle rupture. It is important to be vigilant of these injuries, given that early recognition and operative intervention with or without direct muscle repair may optimise outcomes.

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Dynamics of Сhanges in the Power Characteristics of the Biceps Brachii Muscle under the Influence of Different Vibration Effects

Journal of restorative medicine and rehabilitation ◽

10.38025/2078-1962-2021-20-2-62-68 ◽

2021 ◽

Vol 20 (2) ◽

pp. 62-68

Author(s):

Anastasia S. Trepova ◽

Mikhail A. Eremushkin

Keyword(s):

Muscle Strength ◽

Vibration Frequency ◽

Biceps Brachii ◽

Biceps Brachii Muscle ◽

Average Increase ◽

Biceps Muscle ◽

Left Hand ◽

Power Characteristics ◽

Vibration Therapy ◽

The Right

Aim. To determine the effects of vibration therapy devices exposure with a constant and aperiodic frequency of vibrations on the tissue of the biceps muscle of the shoulder. Material and methods. The study was conducted on 10 volunteers aged 24-35 years. the program Adobe Audition CC 2020, the device for vibration therapy with a constant vibration frequency “Charm 1-t”, the device for vibration therapy with an aperiodic vibration frequency “Individual massager with a pseudo-boiling layer” (MI EPS), the robotic biomechanical diagnostic and training complex with biological feedback CON-TREX were used. The measurement of the maximum strength of the biceps brachii muscle was carried out once to detect sensitivity to vibration, and then during 7 days for the dynamics of power characteristics. The maximum force was measured before exposure to vibrotherapy devices and immediately after exposure using the isokinetic classical mode of operation of the diagnostic system. Results. In a single measurement of biceps strength on one shoulder in a group of women, the average increase in muscle strength after using the Charm 1-T device was 0.8 N (2.3%), after using MI EPS – 1.9 N (6.4%). In the group of men, the average increase in muscle strength after using the device “Charm 1-T” was 1.9 N (3.2%), after using “MI EPS” – 4.6 N (7.2%). At the seven-day follow-up, the average increase in strength in the group of women on the right hand after using the Charm 1-T device was 21.8% (5.6 N), on the left hand after using MI EPS, the increase was 23.2% (6.1 N). In the group of men, the average increase in strength on the right hand after using “Charm 1-T” was 53% (30.7 N), on the left hand after using “MI EPS” – 15.5% (11.5 N). Conclusion. All participants in the study groups were determined to be sensitive to both types of vibration exposure. The study participants demonstrated an increase in strength indicators when testing the biceps muscle of the shoulder, and there was also an improvement in the tolerability of the procedure itself.

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Sarcomere Length During Post-Natal Growth of Mammalian Muscle Fibres

Journal of Cell Science ◽

10.1242/jcs.3.4.539 ◽

1968 ◽

Vol 3 (4) ◽

pp. 539-548

Author(s):

G. GOLDSPINK

Keyword(s):

Sarcomere Length ◽

Biceps Brachii ◽

Muscle Length ◽

Muscle Fibres ◽

Biceps Brachii Muscle ◽

Newborn Animal ◽

Maximum Tension ◽

Mammalian Muscle ◽

Extended Position ◽

The Difference

The length of the sarcomeres, the A- and the 1-filaments and their percentage overlap were measured in the fibres of the biceps brachii muscle from mice of different ages. The sarcomere length with the limb in the fully extended position was found to increase from 2.3 µ in the newborn animal to 2.8 µ in the adult. This increase was due to a decrease in the percentage overlap of the filaments and not to any change in the filament lengths. The sarcomeres at the ends of the fibres were found to be shorter than those in the middle of the muscle, at all ages. When the muscles were stretched beyond their resting length, only about the middle 60 % of the sarcomeres in the young muscles increased in length. Length/tension plots were obtained for young and old muscles and the difference in the shape of these plots could be explained as being due to the non-functional terminal sarcomeres of the young muscles. The maximum tension developed by the young muscles was found to be attained at an initial muscle length about 10 % greater than their length at maximum limb extension. The adult muscles developed maximum tension at their length at maximum limb extension.

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Morphology of the walls of the cavernous sinus of Cebus apella (tufted capuchin monkey)

Arquivos de Neuro-Psiquiatria ◽

10.1590/s0004-282x1999000500002 ◽

1999 ◽

Vol 57 (3B) ◽

pp. 735-739 ◽

Cited By ~ 4

Author(s):

ROBSON JOSÉ DE SOUSA DOMINGUES ◽

JOSÉ AUGUSTO P. CARNEIRO MUNIZ ◽

OISENYL JOSÉ TAMEGA

Keyword(s):

Cavernous Sinus ◽

Dura Mater ◽

Deep Layer ◽

Lateral Wall ◽

Cebus Apella ◽

Capuchin Monkey ◽

Fiber Bundles ◽

Capuchin Monkeys ◽

Tufted Capuchin Monkeys ◽

Nervous Fiber

The morphology of the dura mater and its relationship with the structures of the cavernous sinus were analyzed in five tufted capuchin monkeys (Cebus apella) using histological sections, showing that the walls of the cavernous sinus of this species are similar to those of other primates, including man. Except for the medial wall of the cavernous sinus, the remaining walls consist of two distinct dura mater layers. The deep layer of the lateral wall of the cavernous sinus is contiguous to the sheath of the oculomotor, trochlear and ophthalmic nerves. Arterioles, venules, venous spaces, neuronal bodies and nervous fiber bundles are found on this lateral wall.

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AN ATTEMPT AT ESTIMATING EXTRAFIBER FLUID IN SMALL SKELETAL MUSCLES BY A SIMPLE PHYSICAL METHOD

Canadian Journal of Physiology and Pharmacology ◽

10.1139/y66-095 ◽

1966 ◽

Vol 44 (5) ◽

pp. 765-775 ◽

Cited By ~ 10

Author(s):

G. Goldspink

Keyword(s):

Skeletal Muscles ◽

Water Deprivation ◽

Biceps Brachii ◽

Physical Method ◽

Fluid Volume ◽

Biceps Brachii Muscle ◽

Optimum Thickness ◽

Biceps Muscle ◽

Considerable Decrease ◽

Mature Mouse

Estimation of the extrafiber fluid volume in the biceps brachii muscle of the mouse was attempted by pressing the fibers into a thin layer. This caused the fluid from the spaces between the fibers to be displaced to the periphery of the fiber mass. As the thickness of the layer was known, the volume of the extrafiber fluid and the fibers was determined from their areas. The technique consisted of gently pressing the muscle between two glass plates. The thickness of the layer was controlled by plastic film spacers placed between the plates. The optimum thickness for mature mouse biceps muscle was found to be 125 μ. Measurements were carried out on muscles of different sizes, and it was found that the proportion of extrafiber fluid did not change very markedly during postembryonic growth. Investigations were also undertaken to ascertain the effects of starvation and deprivation of water. Starvation was found to increase the percentage of intrafiber water. Deprivation of water was found to result in a considerable decrease in the extrafiber fluid volume but to cause no dehydration of the fibers themselves.

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The Proliferation of Myofibrils During Muscle Fibre Growth

Journal of Cell Science ◽

10.1242/jcs.6.2.593 ◽

1970 ◽

Vol 6 (2) ◽

pp. 593-603

Author(s):

G. GOLDSPINK

Keyword(s):

Electron Microscope ◽

Phase Contrast ◽

Biceps Brachii ◽

Muscle Fibres ◽

Biceps Brachii Muscle ◽

Longitudinal Splitting ◽

Stages Of Growth ◽

High Incidence ◽

Fibre Growth ◽

Large Muscle

Myofibrils in muscle fibres of different sizes and different ages were examined and measured using phase-contrast and electron microscopy. During the post-natal growth of the mouse biceps brachii muscle the number of myofibrils in some fibres increases from about 75 to 1200 The range of myofibril size was from 0.4-1.2 µm. The distribution of myofibril sizes in muscles of all ages studied was bimodal A high incidence of longitudinal splitting of myofibrils was observed with the electron microscope in differentiating muscle fibres and in some medium and large muscle fibres. Size measurements with the electron microscope showed that the splitting myofibrils were about twice as large as non-splitting myofibrils and that the myofibrils split more or less down the middle. A possible explanation for the splitting is that the peripheral I filaments are pulled at an angle slightly oblique to the myofibril axis, because of the discrepancy in the A and I-filament lattice spacings. When the myofibril reaches a certain size the oblique pull of the peripheral I filaments is strong enough to cause the Z disks to rip. From data on the size, shape and number of myofibrils at different stages of growth it was concluded that longitudinal splitting is the means by which the number of myofibrils increases during post-natal growth.

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